734 GRAMINE 4 CALAMOVILFA 
SPARTINA 
little shorter to slightly longer than the glume: basal hairs equalling or shorter 
than the glume. In bogs, Washington to California and the Eastern States. 
Var. elongata Kearney |. c. 40. Less strongly cespitose and less rig- 
id, with few sterile shoots; smaller spikelets and often less pointed empty 
glumes. California to Brit, Columbia and Ontario. 
Var Americana Kearney |. c. 41. Panicle usually very dense: empty 
glumes 144-2 lines long, usually very acute. Oregon to Brit Columbia and 
Hudson Bay. 
C. crassiglumis Thurber Bot. Cal. ii, 281. Stems about 1 foot high, 
erect, rigid: sheaths loose, smooth, longer than the internodes: ligules obtuse, 
4g line long or less: leaves 2-6 inches long, spreading, involute toward the acute 
tips: panicle dense and spike-like, 2 inches long, deep purple, its branches 
glomerate, 2-6 lines long, appressed: empty glumes broadly lanceolate or lance- 
ovate, abruptly pointed, subcartilaginous with thin margins, hispidulous through- 
out, hispid on the nerves, 2 lines long or less: flowering glume oblong-ovate, 
toothed at the obtuse apex, minutely hispid, 1% lines long; awn attached at the 
middle or below, equalling or exceeding the glume: basal hairs numerous 3% as . 
long as the glume: palet oblong, about 1 line long, broadest at the apex. In 
swamps, northern California to Brit. Columbia. 
CALAMOVILFA Hack. True Grasses, 113. (1890.) 
Tall grasses with stout horizontal rootstocks, elongated leaves 
and numerous spikelets in more or less open panicles. Spikelets 
one-flowered, the rachella not prolonged beyond the flower. 
Glumes 8, one-nerved, acute, the two outer unequal empty: the 
third longer or shorter than the second, with a ring of hairs at 
base. Palet strongly 2-keeled. Stamens 3. Styles distinct, with 
plumose stigmas. Grain free. Seed adherent to the pericarp. 
C. logifolia Hack. 1. c. Stems stout, 5-6 feet high: sheaths longer than 
the internodes, smooth or more or less soft woolly: leaves very long and narrow, 
with involute attenuate points: panicle 5-20 inches long, at first rather narrow 
and close, but later spreading, its branches rather distant: spikelets compressed, 
3-4 lines long: first glume cuneate, 2-3 lines long, second lance-linear and lon- 
ger: flowering glumes as long as the second one, cuneate-lanceolate: basal hairs 
two-thirds as long as the glume. In sandy places, Brit. Columbia to eastern 
Oregon and Colorado. 
Tribe 4 Chloridex. Spikelets one- to several-flowered, in one-sided 
digitate or fasciculate, rarely solitary, spikes or racemes. Flowering 
glumes usually keeled, entire and unawned, or toothed and with one 
or three straight awns. 
17 SPARTINA Schreb. Gen. 43. 
Glabrous perennial grasses with horizontal rootstocks, flat or 
involute leaves and one-sided spikes in panicles. Spikelets nar- 
row, borne in 2 rows on one side of a triangular rachis, articulated 
with the very short pedicels below the glumes. Glumes 3, the 2 
outer empty, keeled, very unequal, the third subtending a perfect 
flower, keeled, equalling or shorter than the second. Palets often 
longer than the glumes two-nerved. Stamens 3. Styles filiform, 
elongated, with filiform papillose or shortly plumose stigmas. 
Grain free, laterally compressed. ae 
