18 TRIANDRIA MONOGYNIA 



a. Ovary destitute of Bristles. 

 § I. Seed compressed ; Style bifid, ciliate, bulboua at base. Fiudiustylis. VUl 



U S. Ualdwiniani's, Schult. Spikelets ovoid-lanceolato, acute ; um- 

 bel subcompound, about as long as the involucre ; seed longitudinally 

 furrowed. Schult. Man*, {fide Torr. in Litt.) 

 S. puberulus. MuhU Catal.p.7. Not ofMx. Pursh, nor Mutt. 

 8. ferruginous. Muhl. dram. f>. 35. Florid. Cestr. p. 7. Not of /,. 

 mild. I'ers. Ell nor Terr. 



5. sulcatus. Ell. Sk. I. p. 86. Eat. Man. p. 830. Not of ♦*. Du Petit 



Thou a rs. 



Fimbristylis ferruginea ? Itecfc, Bo/, />. 423. Also ? /•:*/>. Jlfan. />. 147. 



F. Baldwiniana. Torr. Scirp. in Ann. Lye. J\T. Y. 3. p. 



Baldwin's Scxbpi s. 



Root perennial 1 fibrous. Culm I to 13 inches high, somewhat compressed 

 deeply striate, nearly glabrous, leafy at base. Leaves about as long as the culm, 

 (sometimes much sh our), narrow-lift ar, striate, finely serrulate ; theaths poors- 

 cental throat. Umbel small, some of the rays occasionally divided; central spike- 

 let sessile. Leaves of the Involucre small, subulate, serrulate ; one of them longer 

 and erect. Spikelets ovoid, tapering to a point. (Humes nearly smooth, ovate, 

 slightly keeled and mueronate, margins membranaceous ; keel greenish, sides 

 chesnut brown. Style bifid, ciliate-pubescent, tumid at base. Seed white, obovate, 

 compressed, externally convex, distinctly grooved lengthwise, with the channels 

 transversely corrugated. 



Hab. Moist places; Serpentine Ridge, West Chester: frequent Fl. July. Fr. Aug. 



Obs. Dr. Torrey informs me this is not the S. ferrugineue of his Flora, (which 

 proves to be a rar. of S. autu/rutulis, Muhl )— nor of Linn. Willd. &c but that it 

 is the S. 8tdcatu8 t of Elliott ; which name had been previously appropriated, by 

 M. Du Petit Thouurs. 



§ 2. Seed triquetrous ; Style trifid, not ciliate, bulbous at base. Glumes some- 

 what 4— 3 ranked, keeled. Trichklostylis. Lestib. 



2. S. capillarts, L. Culm nearly naked, triquetrous, capillary; 

 spikelets ovoid, 2 or 3 of them pedunculate, with an intermediate sessile 

 one. Beck, Bot. p. 426. Specim. Gray, Gram. 1. no. 84. 



6. ciliatifolius. Floral. Cestr. p. 7. Not of EU. (Terr, in Litt.) 

 Trichelostylis capillaris. Torr. Scirp. in Ann. Lye. JX*. Y. 3. p. 

 Hair-like Scikpvs. 



Root annual ? fibrous. Culm 4 to 8or 10 inches high, very slender, leafy at base 

 cespitosc. Leaves setaceous, radical, or sheathing the culm at base, much shorter 

 than the culm; sheaths pilose at throat. Spikelets ovoid-oblon?, subumbcllate 

 generally 3 or 4, sometimes solitary ; one, or two, sessile, the rest on ]>eduncles 

 at?out half an inch long. Involucre of 1 or 2 setaceous leaves; one of them fre- 

 quently longer than the umbel. Glumes oblong ; the lowest mueronate, the upper 

 ones obtuse or cmarginate ; ferruginous, with pale green keel, margin pubescent-. 

 Seed white, triquetrous, transversely corrugated. 



Mab. Sterile soils ; near Serpentine Ridge, W. C. : not common. Fl. July. Fr. Aug. 

 Obs. I have specimens of this plant, from the late Mr. John Jackson, ef this 

 County, with vnbcls of 6 or 6 spikelets, and culms upward of a foot long. 





