TRfANDRIA, MONOGYNIA. 27 



the hand-writing of Willdenow and Schadcr, and it appears 

 to me that there is a very considerable, If not specific distinc- 

 tion, between the European and American plant* known by 

 the name of C Aaveacens* 1 bare not, however, ventured to 

 alter the specific name at present, but will leave it for future 

 consideration. The European species is a much smaller plant, 

 from an inch and an half to three inches high. The spikes 

 are conglomerated ; the spikelets ovate, not compressed. The 

 form of the glumes likewise differs considerably. Sept. 



3. C. umbel compound, rachis angular. Spikelets uicoior.* 

 compressed, lanceolate, acute. Scales lanceolate, 

 purple on the margin, obtuse* Pistillum long, 

 bifid. Seed oval, ash coloured, smooth, Invo- 

 lucrum 3 -leaved, much longer than the umbel. 

 Muhl. D esc rip. Uber. gram* p* IT. 



This plant is described, as above, by Dr. Muhlenberg, as a 

 " co-spt\ Spikes in a compound umbel. Spikelets lan- 



>Iaie, reddish-purple and yellow. A larger species than 

 No*.l< about ten inches or a foot high. In damp or wet pla- 

 ces, on the borders of rivulets and springs, common. August. 



4. C spikes oblong loose ; spikelets subulate, ex- urigom<. 

 panding, a little remote ; small involucrums gene- 

 rally wanting ; partial umbels, with alternate rays. 



/'../. enum.pL 2./;. 358. 

 Mr. Elliot describes this species as attaining the height of 

 th: In this neighbourhood I have never seen it be- 



nd eighteen inches or two feet. Stem 3-sided, or angled. 

 Leaves very long Three or more of the leaves of the involu- 

 crum generally longer than the umbel. Very common on the 

 margins of swamps and ditches, and not unfrequently in san- 

 dy corn-fields cf Jersey, near meadow-ground. Perennial. 

 August. 



J. C. culm erect nearly naked, striated, smooth tri- piiymatodt*, 

 quetrous. Radical leaves lanceolate, sheathing at MuhL 

 the base. Umbel simple or decompound. J/iV0' 

 lucrum 3-9 leaved, unequal, three leaves longer 

 than the others, rough on the margin. Peduncles 

 altogether unequal, compressed, spikelets two- 

 rowed, linear, compound below, simple above, 

 long 15-flowered, opposite, alternate, yellowish, 

 witn a linear brat tea. CaJix glume, 1-valved ob- 



