rudiment, closely imbricate-spiked on one side of a flattish rhachis;
the spikes digitate. Glumes membranaceous, shorter than the flowers;
flowering glume and palet awnless, the glume ovate, keeled, larger than
the palet. Stamens 3. Pericarp (utricle) containing a loose wrinkled
seed.--Low annuals, with flat leaves, and flowers much as in Poa. (Name
from [Greek: E)leusi/n], the town where Ceres, the goddess of harvests,
was worshipped.)
E. INDICA, Gaertn. (DOG'S-TAIL or WIRE GRASS.) (Pl. 9, fig. 1--6.) Culms
ascending, flattened; spikes 2--5 (about 2' long, greenish); glumes
pointless; terminal flower a mere rudiment.--Yards, etc., chiefly
southward. (Nat. from Ind.?)
E. AEGYPTIACA, Pers. (Pl. 9, fig. 1--4, as Dactyloctenium.) Culms often
creeping at base; leaves ciliate at base; spikes 4--5; lower glume awned
and the flowering one pointed. (Dactyloctenium AEgyptiacum,
_Willd._)--Cultivated fields and yards, Va., Ill., and southward. (Adv.
from Afr.?)
48. LEPTOCHLOA, Beauv. (Pl. 16.)
Spikelets 3--many-flowered (the uppermost flower imperfect), loosely
spiked on one side of a long filiform rhachis; the spikes racemed.
Glumes menbranaceous, keeled, rarely awned, nearly equal; flowering
glume 3-nerved, sometimes simply awned, larger than the palet. Stamens 2
or 3. Seed closely enclosed.--Ours annuals. Leaves flat. (Name composed
of [Greek: lepto/s], _slender_, and [Greek: chlo/a], _grass_, from the
long attenuated spikes.)
1. L. mucronata, Kunth. Sheaths hairy; spikes numerous (20--40, 2--4' in
length), in a long panicle-like raceme; spikelets small; glumes more or
less mucronate, nearly equalling or exceeding the 3--4 awnless
flowers.--Fields, Va. to Ill., Mo., and southward. Aug.
49. BUCHLOE, Engelm. BUFFALO GRASS. (Pl. 16.)
Spikelets dioecious (rarely monoecious), very unlike; the staminate
2--3-flowered, sessile in 2 rows in short 1-sided spikes, the empty
glumes blunt, 1-nerved, very unequal, the flowering larger, 3-nerved, a
little exceeding the 2-nerved palet; fertile spikelets 1-flowered, in a
contracted, capitate, 1-sided spike, the large outer glumes indurated,
3-fid at the apex, united at base and resembling an involucre, the inner
(lower) much smaller and membranaceous, or in the lowest spikelet
resembling the outer; flowering glume narrow, hyaline, bifid or nearly
entire, enclosing the 2-nerved palet. Styles distinct. Grain ovate,
free.--A perennial, creeping or stoloniferous, with narrow flat leaves;
staminate spikes (2--3) in a pedunculate spike, the pistillate pair
sessile in the broad sheaths of the upper leaves. (Name a contraction of
_Bubalochloe_, from [Greek: bou/balos], _buffalo_, and [Greek: chlo/e],
_grass_.)
1. B. dactyloides, Engelm. Low (3--8' high) and broadly tufted; sterile
spikes 3--6'' long, the fertile heads 3'' long.--Plains of the Sask. to
Minn., Kan., and Tex. One of the most valuable grasses of the plains.
50. TRIODIA, R. Br. (Pl. 10.)
Spikelets 3--12-flowered, somewhat terete, the rhachis with bearded
joints; terminal flower abortive. Empty glumes unequal; flowering glumes
membranaceous or somewhat chartaceous, much larger than the 2-toothed
palet, convex, 2--3-toothed or cleft at the apex, conspicuously
hairy-bearded or villous on the 3 strong nerves, of which the lateral
are marginal or nearly so and usually excurrent, as is the mid-nerve
especially, into a short cusp or awn. Stamens 3. Stigmas dark purple,
plumose. Grain oblong, nearly gibbous.--Leaves taper-pointed; sheaths
bearded at the throat. Panicle simple or compound; the spikelets often
racemose, purplish. (Name from [Greek: tri]-, _three_, and [Greek:
o)dou/s], _a tooth_, alluding to the flowering glume.)
Sec. 1. TRIODIA proper. _Glumes shorter than the crowded flowers, the
flowering one 3-cuspidate by the projection of the nerves, and usually
with intermediate membranaceous teeth; palet naked._
1. T. cuprea, Jacq. (TALL RED-TOP.) Perennial; culm upright (3--5 deg.
high), very smooth, as are the flat leaves; panicle large and compound,
the rigid capillary branches spreading, naked below; spikelets very
numerous, 5--7-flowered, shining, purple (4'' long); the flowering
glumes hairy toward the base, their points almost equal, scarcely
exceeding the intermediate teeth, thus appearing 5-toothed. (Tricuspis
seslerioides, _Torr._)--Dry or sandy fields, southern N. Y. to Mo., and
southward. Aug.--A showy grass, with the spreading panicle sometimes 1 deg.
wide.
Sec. 2. TRIPLASIS. _Glumes much shorter than the somewhat remote flowers;
flowering glume and palet strongly fringe-bearded, the glume 2-cleft at
the summit, its mid-nerve produced into an awn between the truncate or
awn-pointed divisions._
2. T. purpurea, Hack. (SAND-GRASS.) Culms many in a tuft from the same
annual root, ascending (6--12' high), with numerous bearded joints;
leaves involute-awl-shaped, mostly short; panicles very simple, bearing
few 2--5-flowered spikelets, the terminal one usually exserted, the
axillary ones included in the commonly hairy sheaths; _awn much shorter
than the glume, seldom exceeding its eroded-truncate or obtuse lateral
lobes_. (Tricuspis purpurea, _Gray_.)--In sand, Mass. to Va. along the
coast, and southward; also L. Erie, near Buffalo, and Ill. Aug.,
Sept.--Plant acid to the taste.
51. DIPLACHNE, Beauv. (Pl. 9.)
Spikelets several-flowered, narrow, erect and scattered along the
slender rhachis of the long spicate spikes; flowers all perfect or the
uppermost staminate. Empty glumes membranaceous, carinate, acute,
unequal; flowering glume slightly longer, 1--3-nerved, 2-toothed, and
mucronate or shortly awned between the teeth. Stamens 3. Styles
distinct. Grain free.--Coarse grasses, with narrow flat leaves, and
several or many slender spikes sessile upon an elongated peduncle. (Name
from [Greek: diplo/os], _double_, and [Greek: a)/chne], in the sense of
_chaff_, with reference to the 2-lobed glume.)
1. D. fascicularis, Beauv. Smooth; leaves longer than the
geniculate-decumbent and branching culms, the upper sheathing the base
of the panicle-like spike, which is composed of many strict spikes
(3--5' long); spikelets slightly pedicelled, 7--11-flowered, much longer
than the lanceolate glumes; flowers hairy-margined toward the base, the
glume with 2 small lateral teeth and a short awn in the cleft of the
apex. (Leptochloa fascicularis, _Gray_.)--Brackish meadows, from R. I.
southward along the coast, and from Ill. southward on the Mississippi.
Aug.--Sept.
52. PHRAGMITES, Trin. REED. (Pl. 11.)
Spikelets 3--7-flowered; the flowers rather distant, silky-villous at
base, and with a conspicuous silky-bearded rhachis, all perfect and
3-androus, except the lowest, which is either neutral or with 1--3
stamens, and naked. Glumes membranaceous, shorter than the flowers,
lanceolate, keeled, sharp-pointed, very unequal; flowering glume and
palet membranaceous, slender, the glume narrowly awl-shaped, thrice the
length of the palet. Squamulae 2, large. Styles long. Grain free.--Tall
and stout perennials, with long running root-stocks, numerous broad
leaves, and a large terminal panicle. ([Greek: Phragmi/tes], _growing in
hedges_, which this aquatic grass does not.)
1. P. communis, Trin. Panicle loose, nodding; spikelets 3--5-flowered;
flowers equalling the beard.--Edges of ponds. Sept.--Looks like
Broom-Corn at a distance, 5--12 deg. high; leaves 2' wide. (Eu.)
53. ARUNDO, L.
Flowers all perfect; flowering glume bifid, short-awned between the
teeth. Otherwise as Phragmites. (The Latin name of the species.)
A. DONAX, L. Very tall (10--18 deg.); spikelets 3--4-flowered.--Closely
resembling Phragmites communis. Cultivated for ornament, and naturalized
in Bedford Co., Va. (_A. H. Curtiss._) (Nat. from Eu.)
54. MUNROA, Torr. (Pl. 16.)
Spikelets usually 3-flowered, few (2--4) and nearly sessile in the axils
of floral leaves; flowers perfect, or the uppermost abortive. Empty
glumes lanceolate, acute, hyaline and 1-nerved; flowering glumes larger,
3-nerved, rather rigid, the mid-nerve stout, excurrent, the lateral ones
scarcely so.--Low or prostrate many-stemmed annuals, fasciculately
branched, with crowded short flat rigid or pungent leaves, the short
sheaths strongly striate. (Named for the English agrostologist,
Maj.-Gen. _William Munro_.)
1. M. squarrosa, Torr. Glaucous, somewhat pubescent and villous at the
nodes or glabrous; leaves 3--12'' long.--Dry plains, central Kan. to
Dak., west to Mont., Utah, and New Mex.
55. KOELERIA, Pers. (Pl. 10.)
Spikelets 3--7-flowered, crowded in a dense and narrow spike-like
panicle. Glumes membranaceous, compressed-keeled, obscurely 3-nerved,
barely acute, or the flowering glume often mucronate or bristle-pointed;
the empty ones moderately unequal, nearly as long as the spikelet.
Stamens 3. Grain free.--Tufted with simple upright culms, the sheaths
often downy; allied to Dactylis and Poa. (Named for Prof. _G. L.
Koeler_, an early writer on Grasses.)
1. K. cristata, Pers. Culms 1--2 deg. high; leaves flat, the lower sparingly
hairy or ciliate; panicle narrowly spiked, interrupted or lobed at base;
spikelets 2--4-flowered; flowering glume acute or mucronate.--Var.
GRACILIS, Gray, with a long and narrow spike, the flowers usually barely
acute.--Dry hills, Penn. to Ill. and Kan., thence north and westward.
(Eu.)
56. EATONIA, Raf. (Pl. 10.)
Spikelets usually 2-flowered, with an abortive rudiment or pedicel,
numerous, in a contracted or slender panicle, very smooth. Empty glumes
somewhat equal in length, but very dissimilar, a little shorter than the
flowers; the lower narrowly linear, keeled, 1-nerved; the upper broadly
obovate, folded round the flowers, 3-nerved on the back, not
keeled, scarious-margined. Flowering glume oblong, obtuse,
compressed-boat-shaped, naked, chartaceous; the palet very thin and
hyaline. Stamens 3. Grain linear-oblong, not grooved.--Perennial, tall
and slender grasses, with simple tufted culms, and often sparsely downy
sheaths, flat lower leaves, and small greenish (rarely purplish)
spikelets. (Named for Prof. _Amos Eaton_, author of a popular Manual of
the Botany of the United States, which was for a long time the only
general work available for students in this country, and of other
popular treatises.)
[*] _Upper empty glume rounded-obovate and very obtuse; panicle usually
dense._
1. E. obtusata, Gray. (Pl. 10.) Panicle dense and contracted, somewhat
interrupted, rarely slender; the spikelets crowded on the short erect
branches; upper glume rough on the back; flowers lance-oblong.--Dry
soil, N. Penn. to Fla., Mich., and far westward. June, July.
[*][*] _Glume narrower, sometimes acutish; panicle more loose and
slender._
2. E. Pennsylvanica, Gray. Leaves mostly 3--6' long; panicle long and
slender, loose, the racemose branches lax and somewhat elongated; glumes
thin and broadly scarious, the lowest half the length of the flower,
very narrow, the upper obtuse or bluntly somewhat pointed; the 2 (rarely
3) flowers lanceolate, with pointed glumes.--Varies, with a fuller
panicle, 6--8' long, with the aspect of Cinna (var. MAJOR, _Torr._);
and, rarely, with the lower palet minutely mucronate-pointed!--Moist
woods and meadows; common.
3. E. Dudleyi, Vasey. Culms very slender; leaves shorter, 1--2' long;
panicle very slender, the branches few, short and mostly appressed;
empty glumes nearly equal, the lower oblong, the upper broadly
elliptical, apiculate; flowering glumes shorter than in n. 2,
acutish.--Long Island to central N. Y., south to S. C.
57. ERAGROSTIS, Beauv. (Pl. 10.)
Spikelets 2--70-flowered, nearly as in Poa, except that the flowering
glume is but 3- (rarely 1-) nerved, not webby-haired at the base, and is
deciduous; palet persistent on the rhachis after the rest of the flower
has fallen.--Culms often branching. Leaves linear, frequently involute,
and the ligule or throat of the sheath bearded with long villous hairs.
Panicle various. (Name from [Greek: e)~r], _spring_, and [Greek:
a)/grostis], _a grass_.)
[*] _Prostrate and creeping, much branched; root annual; spikelets flat,
imperfectly dioecious, clustered, almost sessile, in the more fertile
plant almost capitate._
1. E. reptans, Nees. Spikelets linear-lanceolate, 10--30-flowered;
flowers lance-ovate, acute; leaves short, almost awl-shaped.--Gravelly
river-borders; common. Aug.--Flowering branches 2--5' high.
[*][*] _Diffusely spreading, or the flowering culms ascending, low
(6--15' high), annual; spikelets often large, flat, forming a narrow
crowded panicle._
E. MINOR, Host. Sheaths often hairy; leaves flat, smooth; spikelets
short-pedicelled, lance- or oblong-linear, 8--20-flowered, lead-colored
(2--5'' long); flowers ovate, obtuse, the lateral nerves becoming
evident, and keel smooth. (E. poaeoides, _Beauv._)--Sandy waste places,
eastward; rare. (Nat. from Eu.)
E. MAJOR, Host. Sheaths mostly glabrous; spikelets larger (3--10''
long), becoming linear, whitish when old, 10--50-flowered; flowers more
spreading, their glumes larger, with very strong lateral nerves and
rough on the keel. (E. poaeoides, var. megastachya, _Gray_.)--Similar
situations, and more common. Aug.--Emits a sharp, unpleasant odor.
(Nat. from Eu.)
[*][*][*] _Erect, or in group [+] diffusely spreading and ascending;
panicle open, its branches capillary; spikelets proportionally small,
sometimes minute. (Number of flowers in the spikelet very variable,
according to age, etc.)_
[+] _Annual; culms slender, branching and decumbent or spreading at
base; leaves narrow, flat, soft; branches of the narrow panicle rather
short and thickly-flowered, not bearded in the axils, or sometimes the
lowest sparingly._
E. PILOSA, Beauv. (Pl. 10, fig. 1--4.) Panicle elongated-oblong, with
rather erect branches (except at flowering-time); _spikelets_
5--12-flowered (2--4'' long, purplish-lead-color), becoming linear,
_about equalling their pedicels; empty glumes_ (small) _and flowering
ones obtuse_, the latter broadly ovate, _1-nerved_ (lateral nerves
obsolete).--Sandy or gravelly waste places, S. New Eng. to Ill., and
southward. Aug.--Plant 6--12' high. (Nat. from Eu.)
2. E. Frankii, Meyer. Much branched and diffuse (3--8' high); panicle
ovate-oblong, rather dense, spreading; _spikelets 2--5-flowered_
(1--11/2'' long), _on slender pedicels; glumes very acute; the flowering
one ovate, acute_, rather obscurely _3-nerved_.--Low or sandy ground, S.
Penn. to Kan., and southwestward. Aug.
3. E. Purshii, Schrader. Sparingly branched at the decumbent base, then
erect (1/2--2 deg. high); panicle elongated, the branches widely spreading,
very loose; _spikelets 5--18-flowered_, oblong-lanceolate, at length
linear (2--41/2'' long), _mostly much shorter than their capillary
pedicels; glumes all ovate and acute, or the flowering ones acutish,
3-nerved_.--Sandy or sterile open grounds, Penn. to Mo., and
southwestward; also introduced northward.
[++] _Culms simple, or branching only at the very base, firm, erect,
mostly forming thick tufts; leaves very long; panicle very large,
compound, often longer than the culm, with elongated loosely-flowered
branches, their axils often bearded. (Doubtful perennials, or n. 5
annual.)_
4. E. tenuis, Gray. _Panicle virgately elongated_ (1--21/2 deg. long), very
loose, the spreading branches bearded in some of the lower axils, their
remote divisions and long _diverging pedicels_ capillary; spikelets
2--6- (sometimes 7--12-) flowered, pale or greenish; _lower glumes
lanceolate or awl-shaped, very acute_ (11/2--2'' long), membranaceous, as
are the _oblong-lanceolate acute flowers; flowering glume distinctly
3-nerved_; the upper ciliate-scabrous.--Sandy soil, Ohio to Ill., Kan.,
and southward. Aug.--Oct.--Leaves rather rigid, 11/2--2 deg. long, glabrous or
sparingly hairy; the sheaths hairy or glabrous; the throat strongly
bearded; flowers much larger than in the next, fully 11/2'' long.
5. E. capillaris, Nees. _Panicle widely expanding_, usually much longer
than the culm, its spreading branches (mostly naked in the axils) and
long _diverging pedicels_ capillary; _spikelets rather terete_, very
small, 2--4-flowered, greenish or purplish; _glumes and flowers ovate,
acute_ (less than 1'' long); _flowering glume obscurely 3-nerved_,
scarcely keeled; the palet rough-ciliate.--Sandy dry soil and fields;
common, especially southward. Aug., Sept.--Leaves and sheaths very
hairy, or nearly glabrous; the former about 1 deg. long, not rigid; panicle
1--2 deg. long, soon diffuse.
6. E. pectinacea, Gray. _Panicle widely diffuse_, its rigid divergent
main branches _bearded in the axils; the capillary pedicels more or less
appressed_ on the secondary branches; _spikelets flat_, 5--15-flowered,
becoming linear, purple or purplish; glumes and flowers ovate or
oblong-ovate, acutish; _flowering glume strongly 3-nerved; palet
hirsute-ciliate_.--Leaves long, rigid, mostly hairy, the sheaths
especially so; plant 1--3 deg. high; spikelets 2--3'' long, 1'' wide,
closely flowered.--Var. SPECTABILIS, Gray. Leaves and sheaths mostly
glabrous; branches of the panicle (the lower reflexed with age) and
pedicels shorter; spikelets rather larger.--Sandy dry ground, from E.
Mass. near the coast, and from Ohio and Ill., southward. Aug.--Oct.
7. E. campestris, Trin. Glabrous or the sheaths villous at the throat;
culm short, bearing an elongated and very open panicle with divaricate
branches bearded at base; _spikelets_ linear, flat, 8--12-flowered,
_sessile or nearly so_ along the branchlets; _glumes very acute or
acuminate_, 3-nerved, roughish on the keel; palet minutely ciliate. (E.
pectinacea, var. refracta, _Chapm._ Poa refracta, _Ell._)--Del. and Md.
to Fla. and Ala.
58. MELICA, L. MELIC-GRASS. (Pl. 10.)
Spikelets 2--8-flowered; the 1--3 upper flowers imperfect and
dissimilar, convolute around each other, and enwrapped by the upper
fertile flower. Empty glumes usually large, scarious-margined, convex,
obtuse; the upper 7--9-nerved. Flowering glume papery-membranaceous,
dry and sometimes indurating with age, rounded or flattish on the back,
5--many-nerved, scarious at the entire blunt summit. Stamens
3.--Perennials with soft flat leaves. Panicle simple or sparingly
branched; the rather large spikelets racemose-one-sided. (An old
Italian name for Sorghum, from _mel_, honey.)
1. M. mutica, Walt. (Pl. 10.) Slender, with usually narrow leaves, the
panicle often reduced to a simple raceme; lower glumes nearly equal and
almost equalling the spikelet; fertile flowers usually 2; flowering
glumes broad, smooth, obtuse.--Rich soil, Penn. to Fla., west to Wisc.,
Iowa, and Tex.
2. M. diffusa, Pursh. Taller, 21/2--4 deg. high, with mostly broader leaves
and a more usually compound and many-flowered panicle; lower glumes more
unequal, the outer very broad; fertile flowers usually 3; flowering
glumes somewhat scabrous and more acute. (M. mutica, var. diffusa,
_Gray_.)--Penn. to Ill., and southward.
(Addendum) 3. M. Porteri, Scribn. Tall and slender; panicle very narrow,
the slender branches erect or the lower slightly divergent; pedicels
flexuous or recurved, pubescent; glumes very unequal and shorter than
the spikelet; fertile flowers 3--5, the glumes scabrous.--Mountains of
Col. and southward; reported from Cass Co., Neb. (_J. G. Smith_).
59. DIARRHENA, Raf. (Pl. 10.)
Spikelets several-flowered, smooth and shining, one or two of the
uppermost flowers sterile. Empty glumes ovate, much shorter than the
flowers, coriaceous; the lower much smaller; flowering glume ovate,
convex on the back, rigidly coriaceous, its 3 nerves terminating in a
strong and abrupt cuspidate or awl-shaped tip. Squamulae ovate, ciliate.
Stamens 2. Grain very large, obliquely ovoid, obtusely pointed, rather
longer than the glume, the cartilaginous shining pericarp not adherent
to the seed.--A nearly smooth perennial, with running rootstocks,
producing simple culms (2--3 deg. high) with long linear-lanceolate flat
leaves toward the base, naked above, bearing a few short-pedicelled
spikelets (2--3'' long) in a very simple panicle. (Name composed of
[Greek: di/s], _two_, and [Greek: a)/r)r(en], _man_, from the two
stamens.)
1. D. Americana, Beauv. Shaded river-banks and woods, Ohio to Ill., and
southward. Aug.
60. UNIOLA, L. SPIKE-GRASS. (Pl. 11.)
Spikelets closely many-flowered, very flat and 2-edged; 3--6 of the
lowest glumes empty, lanceolate, compressed-keeled; flowering glume
coriaceo-membranaceous, strongly laterally compressed and keeled,
striate-nerved, usually acute or pointed, entire, enclosing the much
smaller compressed 2-keeled palet and the free laterally flattened
smooth grain. Stamen 1 (or in U. paniculata 3).--Upright smooth
perennials, growing in tufts from strong creeping rootstocks, with broad
leaves and large spikelets in an open or spiked panicle. (Ancient name
of some plant, a diminutive of _unio_, unity.)
[*] _Spikelets large (1/2--2' long), ovate or oblong, 9--30-flowered;
panicle open._
1. U. paniculata, L. (SEA OATS.) Culm and panicle elongated (4--8 deg.
high); _leaves narrow_, when dry convolute; _spikelets ovate,
short-pedicelled_; glumes glabrous, bluntish, several of the lower
sterile; stamens 3.--Sand-hills on the sea shore, S. Va. and southward.
2. U. latifolia, Michx. (Pl. 11, fig. 1--3) Culm 2--4 deg. high; panicle
loose; _leaves broad_ and flat (nearly 1' wide); _spikelets_ at length
_oblong, hanging on long pedicels_; glumes acute, ciliate on the keel,
all but the lowest with perfect monandrous flowers.--Shaded slopes, S.
Penn. to Ill., and southward.
[*][*] _Spikelets small; panicle contracted, wand-like; perfect flowers
long-pointed._
3. U. gracilis, Michx. Culm 3 deg. high, slender; _spikelets
short-pedicelled_ (2--3'' long), broadly wedge-shaped, acute at base,
_4--8-flowered_; glumes ovate and divergently beaked, long, the 3 lowest
empty.--Sandy soil, from Long Island to Va., near the coast, and
southward. Aug.
61. DISTICHLIS, Raf. SPIKE-GRASS. (Pl. 10.)
Spikelets and numerous flowers compressed, crowded in a densely spiked
or capitate panicle. Glumes herbaceous or membranaceous, the lower
faintly many-nerved; flowering glumes rather coriaceous, laterally much
flattened, faintly many-nerved, acute. Ovary stalked.--Flowers
dioecious, rather large. Leaves crowded, involute, usually rigid. (Name
from [Greek: di/stichos], _two-ranked_.)
1. D. maritima, Raf. Culms tufted from creeping rootstocks (9--18'
high); spike oblong, flattened (1' long); spikelets ovate or oblong,
5--10-flowered; glumes smooth and naked; grain pointed. (Brizopyrum
spicatum, _Hook_.)--Salt marshes and shores. Aug.--Glumes of the
pistillate flowers more rigid and almost keeled; stigmas very long,
plumose; the staminate glumes smaller and somewhat rounded on the back.
(Addendum)--Distichlis maritima. On alkaline soil in Neb., and very
common in similar localities west and southwestward; chiefly the var.
STRICTA, Thurb., with setaceously convolute leaves, the many- (10--20-)
flowered spikelets in a loose panicle.
62. DACTYLIS, L. ORCHARD GRASS. (Pl. 10.)