36 TRIANDRIA, MONOGYNIA. 



dotted. Bristles 3 — 5, white, hispid a little longer 



than the seed. MuhU 

 S. lupulinus, Smith. 

 Near to S. triqnetrum, Swartz/(Muhl.) 



The plant I have found in this neighbourhood is suggested 

 by Mr. Collins to be a variety of Scirpus debilis ; and on com- 

 paring it with the latter plant, a specimen of which I have re- 

 ceived from that gentleman, it does really appear to be so. It 

 is not, perhaps, the S. debilis of Pursh ; or if so, it is imper- 

 fectly described by him ; neither does it appear to be the plant 

 intended by Mr. Elliot, under that name, referring to the 

 debilis, Muhl's Cat. Dr. Muhlenberg seems to describe it, 

 under his debilis ; for his description extends evidently to two 

 varieties, if not species. I have, however, for the present 

 quoted his characters, and referred my plant to his name. In 

 the same bog where Furiena squarrosa, and Eriophorum polys- 

 tachium grow, Jersey. August. 



32. Tricophorum, Pers. ench. 1. p. 69. (Cyperoidee.) 



Spikelets ovate, imbricate on all sides, with 

 scales. Bristles of the seed hairy, longer 

 than the glumes, 6 in number. 



cyjerinum. 1. T. culm obtusely 3-angled, leafy ; panicle su- 

 pra-decompound, proliferous ; spikelets generally 

 by threes. 



Eriophorum cyperinum, sp. pi. 1. p. 313. 



Scirpus Eriophorum, Mich. 1. p. 33. 



Scirpus thyrsiflorus, Willd. 



Brown Cotton-grass. 



From three to four feet high ; sometimes five, easily dis- 

 tinguished when in fruit, by its large, loose, brown or fulvous 

 cottony panicles. In bogs every where very common. Pe- 

 rennial. In July and August. 



33. Eriophorum, Gen.pl. 95. ( Cyperoidea . J . 



Glumes chaffy, imbricate on all sides. Corolla 

 0. Seed 1, surrounded with very long 

 wool. 



