20 TUIANDUIA MOXOCiYXIA 



nearly globose; Glumes ovate, rounded at the end, dark brown, with membranact 

 ous whitish margins. Style 2 sometimes 3-cleft. Scsd brown, smooth, .shining, 

 bovate, compressed, with a marginal ridge on each side; tubercle compress 

 broad at base, acute, Brittle* 6, somewhat longer than the seed, retrorsely hi 5 . 

 pid. 

 ///.•//. Swamps, and margins of ponds: frequent /'/. June, Fr. July. 



Ob$. It seems uncertain whether this is the S. capitatus, of Willd. Sjp.l.p.29ji 

 though he says it grows in Virginia, Persoon and Pureh are equally olpci 

 Muhlenberg thought h sc ircely different from the S. oro/us,of Will l. which n 

 be the case: but he v. is undoubtedly mistaken in supposing that it might also 



the S. tubcrculosus, of Ma?. .!//'• 



6. 8. tenuis, Willd* Culm naked, slender, quadrangular, sulcata' 

 spikelct elliptic, acute at each end ; plumes ovate, obtuse ; seed roundish 

 obovoid, obtusely triangular, verrucose. /:' < A\ Bo/, />. 425. 



8, quadrangulatus, MuhL CataL />. (*. Not of JUr. Pers* Pureh 



FJL nor /:<//. 



Bleocharia tenuis r©rr. Scirp* in Ann* Lyc.JW Y. 3. p* 



Slk ndku 8cj urrs. 



Root perennial, creeping. Culm erect, 10 to 20 inches high, leafless, acutely ■! 

 angled with the sides grooved, and a long purple, truncate sheatJi, at base, Spike* 

 let at first rather oUuse- Glumes dark br >wn, often nearly black, with a whl 

 scarious margin; the lower ones larger, btuse and empty. Seed light brovi 

 roughly verrucose or muricate, crowned with a trianj uiar dentate tubercle. Bri& 

 tics 2 or 3 } rarely wanting. 

 Hub. Swamps, and margins of ponds : frec;u«*nt. Ft. June. Fr. July, 



7. S. AcicuLARis, /,. Culm naked, setaceous, quadrangular; Bpike- 

 let ovatc-oMong, Ksw-flowered ; glumes somewhat obtuse ; seed trigon* 

 ous, vcMTucose. Btck % Hot. p. 434. Spiciy. Gray, Gram* 2. no. 138, 



S. capillaccus 1 Mb* Am* 1. p. 80. Also /V/w. Syn, I. />. 86, 



S. trichodes. MuhL CataL p. 7. KjusiL Gram. p. 90. Eft ,VA\ 1.//. 



76. J?orl. PA& 1. /'. 81. /'/or///. CV.v/r. p. 7* 



.llsoy S. pusillus. Purdthi Am* 1. /;. . r >4. 



Eleocharis acicularis. JJndL Ency. p. 48. 7 Vr. Scirp* in Jinn. Luc, 



A\ T* 3. />. 



Nkedle-like Sri hits. 



Root perennial • Culm 3 to 6 Inches lonsr, 4-angled, leafless, l>ristlc-like, clab. 

 rous, cespitose, purple at base, and cl sely embraced i»y a truncate, ebtoes sheath 

 SpikeletA or 5— (sometinu s S or 10— ) flowered, often perfecting but 1 or 2 seeds. 

 Glumes with scarious margins; the lowest one larger and empty. »S7y/e 2 or 3- 

 cleft, pubescent. Seed obovoid, trigonous, verrucose, yellowish and shiniug. 

 Bristles 4, rarely wanting, twice as long as the seed, and scarcely hispid. 



Hob. Margins of ponds, and miry places : Barrens : not common. Fl. July. Fr. Aug 

 Ob$. I have a variety, found by D. Townsend, Ksq. on tli«; Mica slate hills, with 

 culms 12 to 18 inches long, and yet equally slender and capillary as the small spe- 

 cimens. The roots are creeping, and apparently perennial. 



8. S. plaxifolitjs, MuhL Culm triquetrous, leafy at base ; leaves lin- 

 ear, flat, nearly equalling the culm; spikelct ovate-oblong, compressed, 

 about as long as the cuspidate bracts at the base. Beck, Bot. p* 425. 

 Icon, Bart. Am. 3. tab. 86. /. 3. 



FjdLT-LEAVED SciRPUS, 



: 



