15 



* 



gynium small, green, usually lightly nerved, gradually produced 

 into a beak which is cut into sharp awl-Hke teeth. (238a.) Utah 

 to Cahfornia and northward. 



m 



20. — Carex TENUIROSTRIS, Olney, Parry's Bot. Obs. in W. 

 Wyoming, in Amer. Nat. 1 874, 24, v. s. Hb. Gray.* 

 C. Bonplandii^ Bailey, Proc. Amer. Acad. Arts and Sci. xxii. 



152 (1886). 

 To be compared with Carex f estiva, Dew. and C, Prcslii, 

 Steud. Low (3 to 8 in. high), stiff and erect, the leaves very nar- 

 row and long-pointed, somewhat shorter than the culm ; head 

 small, ovate (a half inch or less long), very light brown ; perigy- 

 nium lanceolate and nearly terete below, slightly concave but mar- 

 ginless above, gradually narrowed into a point, lightly many- 

 nerved, (particularly on the back), about the length of the lan- 

 ceolate and acute hyaline-margined scale. (287a.) I have 

 seen Kunth's original C, Bonplandii at Berlin, and it is essentially 

 different from this plant. So far as I can judge from materials" 

 at my command, Boott's C Pnrdiet is distinct from C, Bonplandii, 

 although referred to that species by himself. The peculiar boat- 

 shaped and marginless perigynia of C. tennirostris distinguish 

 it from both the above South American species, and from C. /es- 

 tiva and C, Preslii. N. W. Wyoming, Parry, 284, and Summit 

 Valley, Cal., Pr ingle, . 



V 21. — Carex illota. 



C. Bonplandii, Kunth ? van minor, Boott, Proc. Acad. Phila. 

 1863, Tj, V, s. Hb, Gray.; Olney, Bot. King's Rep. 16^^^ 

 (1871), v. s. Hb. Gray., and Exsicc. fasc. 3, No. 3 (1871), 



v. s. 



C, Bonplandii, van angustifolia^ W. Boott, Bot. Calif, ii. 233 



(1880), V. s. Hb. Gray.; Bailey, Proc. Amer. Acad. Arts 



and Sci. xxii. 153 (1886). 



Distinguished from small forms of C. festiva, Dew., as follows : 

 Very slender and usually tall (6 in. to 19 in.), the head very small 

 and globular or short-oblong (^ in. or less in diameter) ; peri- 

 gynium completely marginless, thick below, stipitate, nerv^ed, en- 

 tirely smooth on the edges, the cylindrical and scarcely-cut beak 

 projecting beyond the obtuse or muticous dark brown scale. 



^ Carex tennirostris, B(xx*kl. is a more recent species. 



\ 



