

21 TRIANDRIA MONOGYNIA 



2. E. AM.rsTTFOLirM, Roth. Culm somewhat triangular; leay* 

 rhannelled-triquetrous, linear; spikelets several, pedunculate, HiiuIIn 

 nodiUnp:; peduncles smoothish. J5<?rfc, /^/. />. 427. 

 Bi polyat&cbyon, par. taneltum. '7W/\ fyitop, faerf. (,/We Grayj 

 Spkctm. Grat/, dram. 1. /ju. 91. 



K. tenellum ? JV\tf*. Gen. 2. Sttjfr/>/. 



NlBBOW-LBAVBD EMOPHOBUM. 



firtf perennial, creeping. Ctofai 12 to 18 Inches high, slender, nodose, leaf/. 

 smooth. Radical leaves mostly ^Jthered and dead when the plant is in flowe* 

 or fruit: stem leaves short, (i to -J or 8 inches long,) narrow, triquetrous with con 

 cave sides, obtuse (pungently acute, Xutt.y, sheaths long, \\ i 1 1 1 a delicate whiu 

 membrane at throat. Involucre of 1 leaf, linear-lanceolate, v. kh a loose membi 

 ous sheathing basei generally shorter than the spikelets. SpikeletsV to4— -usualh 

 &-oi\ short peduneles (lor 2 of them sometimos near an inch long), Glum* 

 ovate, striate, margins scarious. Style 3-cleft. Stc.l linear-oblong, tricpiciruu? 

 ffairs ve?y numerous, Ion?, white, fine and cottony. 

 Hub. Wet meadows: E. Marlborough: E. Nantmeal: not common, Fl. May. FY. June. 



06a. This plant is given by Dr. Gray, as above quoted ; bul in my copy he ha» 

 added, in a note, "This is the real K. amiustifoliuni ; and I now think a good sp* 

 cics." It grows abundantly at Wynn's Meadows, on the northern side of Chester 

 County ; and sparingly in the swamps in tin Mica slate range, near West Chester 

 also in B. Marlborough, near Hayes' bridge. There are 3 other species in ihe I' 

 States. 



22. RHYXCHOSPORA, VahU Mat. Gen. 49. 



[Greek, Rhynvhos, a snout, or beak, and Sporo, seed ; the feed being leaked.] 



JSpikelcts few-flowered : Glumes imbricated on all sides ; the lower ones 

 empty. Base of the Style enlarged, persistent, articulated to the swd 

 crowning it with a conic Tubercle. Seed invested with hypogynous 

 Bristles* 



1. R. alba, Vahl. "Culm triquetrous above ; leaves setaceous ; spike- 

 lets in corymbose fascicles; seed somewhat lenticular, twice as long a> 

 the tubercle; bristles about 10. Beck, But. p. 428. Speciai, Crat/ t 

 Gram. 1. no. 92, 



Schoenus albus. Willd. Sp. I. p. 207. Mr. Am. I, />. :*4. Pers. Syn< 

 1. p. 59, Muhl. CatuLp. 5. Ejusd. Gram. p. 5. Bigel. Bast. p. 17. 

 White Rhynchospoka. Vidgd — White Bog-rush. 



Root perennial, creeping. Culm 1 to 2 feet high, slender, leafy, clabrow. 

 Leaves setaceous, shorter than the culm. Fascicles of spikelets terminal and a* 

 tllary, with setaceous bracts at base. Spikelets lanceolate, acute at each eurf 

 Oiumes ovate-lanceolate, acute, white, finally brownish. Stamens 3, 2, or 1. 

 Style bifid Seed smooth, nearly lenticular, narrowed at base, and somewhit 

 jiipitate. Tubercle compressed, half as long as the seed. Bristles retrorsely hi* 

 pid, as long as the seed and tul>ercie. 

 Wab. Swamps, in the Mica Slate range : not common. Fl. July. Fr. Sept. 



Obs. Found by D. Townsend, Esq. l&Jtf. 



3. R. glomerata, Vahl. Culm obtusely triangular; leaves flat; spike- 

 Jets in corymbose fasciculate clusters, terminal and axillary, distant, of- 

 ten in pairs ; seed obovate, lenticular, as long as the tubercle ; bristles! 

 Beck, Bot. p. 428. Specim. Gray, Gram. 1. no. 94. 

 jAlsv, R. capitellata. Ell. Sk. hf.Gh &*$$, Q C n t I. p. 33. 



