AOKOSTIDK.K. • 297 



T(.rr. ; A. (Jniy. Gmru. i-t C.vp. ii. '■* (\sM). \,7/„ Iviifni Tiiii. 

 M.'iii. Anid. St. IVtersl). (VI.) f*:.s; (1H40). Von imile.sltt 

 TuckiTm. Am. .lomii. Sci. (I) 14:4.'. (IHi:!). 



A .slender tufted erect lu'rciiiiiiil. 20-40 ctii. Iiij,'li; ciilriw cotn- 

 prcHsod utid solid ud in Miii/c Slii-iitli.s short: li<;ule L-2 iiiiii. Ion;;: 

 Itliidcs Hut or coiidiipliciitt', 4-12 ciii. loii^'. 1-2 nitii. wide. Panicle 

 iiiucli exserted, thin, .')-l(l cm. lonj^', narrow iind Tcw-lloworcd when 

 short, ovate-lanceolate when hir^fe; rays single, very sleiuler. Spike- 

 lets 1-, rarely 2-llowered. dark brown or purple; empty glumes 

 oviite, ohtusc, 1-nervcd, lirslu little inorc! than 0..') nnu. long: second 

 a little longer: lloral glume ovate, concave, 3-nerve(|, 1.5 tuni. long; 

 palea broad-oval, obtuse, nearly as long us its glume. CJruin oval, 

 ilattencd, 1es.s than 1 mm. long. 



Maine. V. S. Ihj)!. A(/rini/. :{71 from Scribner; New Jersey, 

 Scrihiicr .'J.'>S2: Delaware, ('(iii/ti/. 



Maine to Delaware and Northern Michigan in samly wet pla.;es. 



24. 8. compressus (Torr.) Kunth, Knum. IM. 1:217(18:5:5). 

 Af/rosfis roiii/)trt<.siif< Torr. Cat. PI. N. V. 01 (IHl'.i). AfirostiH 

 7orm/inin Scliult. Mant. 2:20)5 (1824). I/Z/W amipressa Trin. 

 Unitl. 1.58 (1S24). 



Culms tufted, erect, stout, flattened, solid, as in Maize, ;50-G0 

 cm. high, from a perennial rootstoiik with short joints covere<l with 

 scales. Sheaths couduplicate, much longer than the internodes; 

 ligule very short; blades erect, condupli(;ate, al)0ut .'{0 cm. long, 

 3 mm. wide. Panicle exserted. open, ovate-lanceolate, 10-:S0 cm. 

 long; rays spreading, lilil'orm, mostly scattered or some in twos and 

 three. Spikelets brown, often 2-llowen,'d ; empty glumes subequal, 

 ovate-lanceolate, 1-nerved, 1.5 mtn. long; lloral glume ovate, con- 

 cave, 3-nerved, as long as the empty glumes, though overreaching 

 them by one-third as united in the spikelet; palea oval, obtuse, as 

 long as its glume. Grain oval, flattened, 1 mm. long. 



New Jersey, Scribner 3381; U. S. Depl. Agn'cul. 353 from 

 Scribner. 



Bogs in the pine-barrens of New .Jersey. 



25. S. repens Presl, Keliq. Hffink. 1:241(1830). 



A slender creeping grass, culms 0.5 mm. diam., rising 1 cm. 



