74? 



TRIANDRIA MONOGYNIA. 



1^—18 



Leaves linear-Ianceo- 



late, flat, margins serrulate, 2—3 inches long, 2—3 lines wide, always 

 jDoinling in tliree directions; sheath at base shorter than the joints, 

 loose, closed. Flowers in subulate spikelets 6 — 7 flowered, forming 

 axillary racemes, simple, sometimes compound; common peduncle 

 just as lo;ig as tlie sheaths of the leaves. Glumes linear-lanceolate, 

 verjr acute. FilamenU 3. 

 ande<l, surrounded by 6 bi 



Grows in Wpt sanflv cnila 



style 2 cleft, persistent. Seed oblong, 3 



and longer than the seed, 



Flowers August 



September, 



&ieatked Dulichiunu 



MARISCUS. 



SpiccB subteretes, in [ Spikes nearly terete, 

 capitulis ag2:regatis. 8ta~ clustered in heads. 



8ta- 



mum 3. %/ws3-fidus. \mens 3. Style 3 cleft. 



Semen triquetrum, nu- Seed 3 angled, naked, 

 dum. 



4. Retrofractus. 



M. culmo obtuse tri- | Stem obtusely 8 ang- 

 quetro, pubescente ,• urn- led, pubescent; umbels 



capi- 



simple ; heads obovate ; 

 spikes subulatej 1 flow- 

 ered, reflexed. 



bellis simplicibus 



tulis obovatis; spicis su- 



bulatis, unifloris, refiexis. 

 E. 



Scirpus retrofvactus, Sp. pi. l.p. 304. ' " 



eefu Iwtf;/ [''^ *'i^V ^'"^"'^ ^^"^^'•' about one foot long, pubes, 

 ^n^nlf !t.'?.!*!^!!!^"^^^^^ S-7^11y f flowered, of which the'lovver 



tw?<me ot the lower flower obtuse, of the 2 

 Filaments 3, adhering to the germ. Style 3 



and upper are abortive. 



superior ones acute. 



rloft c^ J ui * .»^"."c.«o o, auaerina; 



cleft 5eerf oblong, 3 angled, without bristlel 



FbTr^'^th '^"'r ?• ^"™™«^ ^^ ^'^Itivated land. 

 riowers through the summer. 



S. Cylinbriccs. 



K 



M culmo obtuse tri- 

 quetro, glabro,- umbcllis 



Stem obtusely 3 



simplicibus; capitulis cy- 

 lindricis ; spicis lanceola- 

 tis, sub-compressis, pau- 

 cifloris (2-5), patent!- 



bus. E. 



\u 



ang- 

 nbels 



led, glabrous , 



simple ; heads cylindri- 



cal; 



spikes 



lanceolate 



J 



) 



somewhat compressed 

 few flowered (2—5), cx- 



pandin 



g- 



