. Grasses of North America [microform] : the grasses classified, described and each genus illustrated, with chapters on their geographical distribution and a bibliography. Grasses; Forage plants; Graminées; Plantes fourragères. 232 POACE^E. ]^ow Mexico, IIV/V//!/19!t7; Ca\\(on\in, Lcnimon 2023; Arizona, Prhif/h: Tim liJis hoon found in partial simile of calcareous cliffs. New Mexico to Arizona. 48. (110). Eriocoma Nutt. (Jen. N. Am. PI. 1:-10 (1818). Panicle few-llowered with still", sleiuler, llexuosc, dichotomously branched rays. Spikelets e^olitary, 1-flowered. Empty glumes membranous,
. Grasses of North America [microform] : the grasses classified, described and each genus illustrated, with chapters on their geographical distribution and a bibliography. Grasses; Forage plants; Graminées; Plantes fourragères. 232 POACE^E. ]^ow Mexico, IIV/V//!/19!t7; Ca\\(on\in, Lcnimon 2023; Arizona, Prhif/h: Tim liJis hoon found in partial simile of calcareous cliffs. New Mexico to Arizona. 48. (110). Eriocoma Nutt. (Jen. N. Am. PI. 1:-10 (1818). Panicle few-llowered with still", sleiuler, llexuosc, dichotomously branched rays. Spikelets e^olitary, 1-flowered. Empty glumes membranous, alternate, rostrate, first 3-, second 5-nerved. floret be- coming coria. 's, ventricoso, clothed with long white silky hairs, bearing at the base a short, stout, chisel-shaped callus and at or just below the apex a short straight or curved, obscurely trique- trous, caducous awn. Lodicules '.], as long as the ovary. Stamens 3. 1. E. membranacea (i*ursh.). S/i/xi nieni/tniiincm Pursh. Fl. Am. Sept. 3:728 (1814). K hynioiuides \\. & S. Syst. 2:339 (1817). Eriocoma ruspidata ^wii. iWn. i: 40(1818). Milium cuspidal urn Spreng, Syst. 1: 251 (1825). rraclnie Janata 'Yv'm. Act. Pctrop. 12(5 (1834). (h\)/y,opt>is cnspidata I?enth. Vasey, Gram. U. S. 23 (1883). Culms hard, smooth or scabrous, nearly solid. 30-GOcm. high. Sheaths scabrous or smooth, mostly shorter than the inter- nodes; ligule acute, 3-5 mm. long; l)lades scabrous, narrow, involute, the lower often equal- ling the culm, the uppermost very short or nearly as long as the ])anicle. Panicle often in- cluded at the base, diffuse, 12- 15 cm. long; the rays llexuose, each bearing one si)ikelet, whicli is oval, acute, becoming ventri- cose, pubescent, G-7 mm. long; empty glumes subequal, attenu- ate-rostrate, 1-2 nerves at the base on either side of the prominent mid-neive; floret hard, oval, 3-4 mm. long, densely clothed with white hairs, often extending 2. Fio. 43.— Kriocoma memhranacca. A spikelet; «, Horot. (Uich
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
