BOTANICAL GAZETTE. 19 



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purple; leaves convolute-filiform, shorter than the culm; panicle simple, few-flowered, 

 tlie l)ranclies short, appressed ; glumes very unequal, the lower as long as the palea, 

 truncate, short-awued, roughish; the upper }^ longer, attenuate, smooth ; paleae long- 

 stipitate ; awns nearly equal, straight, gyrate at base, 3^ longer than the paleae.— Rob- 

 ert's Key in Caximl)as Bay, South Florida. — In wet weather the awns are staight, but 

 imniLdialely assume their curved form when dry, as do some other awned grasses. 



Anstida ncahra, Kunth. Culm very short (1-2 inches) from a creeping base; leaves 

 numerous, long, linear, their smooth .sheaths enwrapping the base of the long-pedun- 

 cled panicle, this very large {l}4-i feet long), the widely spreading branches in alter- 

 nate clusters of 2-5, flowers scattered, appressed; glumes awn-pointed, the lower one 

 longer, the keel rough; awns erect, straight, the middle one many times longer than the 

 minute lateral ones, 8 4 times longer than the glumes; .stamens 2. — Dry sandy coast, 

 West Florida. September. 



Ariittida condensatu, n. sp. Culms rather stout, simple, erect; leaves rigid, linear, 

 flat or concave, soon convolute, rough on the margins ; panicle long-peduncled, con- 

 tracted, densely many-flowered (l-l^^ feet long); glumes equal, awn-pointed, rough on 

 the keel, longer than the paleaj ; awns erect, .straight, nearly equal, longer than the 

 glumes. — Dry sandy soil. West Florida. 



Triplasis sjmrstjlom, n. sp. Annual ? culms numerous (6-12 inches high), rigid, 

 branching; leaves short (1-3 inches), linear-subulate, the upper ones shorter than their 

 sheaths, which are mostly longer than the iuternodes; racemes simple, axillary and ter- 

 minal, appressed, few-flowered ; spikelets 2-4-flowered (the uppermost awn-like), the 

 flowers large, distant; glumes thin, nearly equal, the lower cleft, the upper acute, }4-}i 

 as long as the spikelets; lower palea scarious, oblong, 3-nerved, ciliate on the margin, 

 strongly bideutate, twice as long as the scabrous awn ; upper palea shorter, villous on 

 the nerves above the middle.— Sandy coast at Punta Eassa, South Florida. October. 



Pdspalum tristachyum, Leconte. Culms creeping; flowering branches erect, short, 

 1-jointed; leaves oblong-linear, obtuse, flat, ciliate (1-2 inches long); peduncles 2-4 from 

 the long sheath of the uppermost leaf (6-12 inches long); spikes 2-4, filiform, erect or 

 spreading; spikelets in 2 rows, oblong-ovate, acute, as wide as the slender flexuous 

 rachis; glumes sparingly hairy, 3-nerved. {P. hdvhduw, Schultes V)— Damp places, Apa- 

 lachicola, Florida. Perennial. — Near P. Michduxuinum, Kunth. 



P<(s2Mtlum ami tir/atuvi, Berg. Culm smooth, branching, slender (13^-2 feet high); 

 leaves linear, thin; spikes 2-3, long and slender, compressed, the terminal pair conju- 

 gate ; spikelets very small, in 2 rows, ovate, yellowish ; the margins loosely fringed with 

 long weak hairs, nerveless. — New Orleans, {JDr. Hale). 



Pdaicuvi j)(ii<2mloid.es, Vers. Culm erect; leaves linear, smooth; panicle spicate, 

 compound; tlie numerous crowded branches appressed; spikelets secund, in 2-rows, 

 ovate, acute; glumes roundish, 5-nerved, much shorter than the acute palere, sterile 

 flower of 2 palete, triandrous.— South Florida {Blodgett in Herb. Thurher). 



Panicum maximum, Jacq. Culms tall (6-8 feet high) ; leaves flat, rigid ; panicle 

 large, {\% feet long), erect, compound; branches whorled ; spikelets oblong, smooth; 

 glumes thin, faintly H-nerved, obtuse, the upper one as long as the palett, and twice as 

 long as the ovate, acute, lower one; .sterile flowers triandrous,— South Florida, {Blod- 

 gett in Herb. Thurber). 



Panicum striatum, Lam. Culm stout (2-3 feet high), sparingly branched ; leaves 

 lanceolate, smooth, the margins rough; panicle sub-corymbose, consisting of several 

 erect, simple racemes, 4-o inches long; spikelets rather large, scattered, lower glume 

 ovate, clasping, the upper and lower sterile paleae strongly 7-nerved.— Banks of the 

 Caloosa River, South Florida. October. 



Panirtimpr».'<trat'um, Lam. Culms creeping; leaves short (1-2 inches long), ovate- 

 lanceolate; panicle short (2 inches long), consisting of 5-10 simple branches; spikelets 



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