3<>4 



CYPERACEAE. 



VOL. I. 



ii. Carex siccata Dewey. 

 Hillside Sedge. 



Dry-spiked Sedge. 

 Fig. 878. 



Carex siccata Dewey, Am. Jour. Sci. 10 : 278. 1826. 



Rootstocks long-creeping, and stout; culms slen- 

 der, single or in small clumps, erect, rough above, 

 i-2 tall. Leaves erect, i"-ii" wide, usually shorter 

 than the culm, the lower short; bracts short or the 

 lowest bristle-form and elongated ; head slender ; 

 spikes 3-8, oblong or subglobose, 2 $"-4" long, brown- 

 ish or brown, clustered or more or less separated, 

 usually gynaecandrous or staminate; perigynia ovate- 

 lanceolate, much flattened but firm, 2.\"-$' long and 

 i" wide, wing-margined, several-nerved on both 

 sides, the inner face, concave by the incurved mar- 

 gins, the tapering rough beak nearly or fully as long 

 as the body; scales ovate-lanceolate, membranous, 

 acute or acuminate, nearly equalling the perigynia ; 

 stigmas 2. 



In dry fields and on hills, Maine to Alaska, south to 

 Rhode Island, New Jersey, Michigan, Arizona and Cali- 

 fornia. May-July. 



Reflexed Sedge. 



12. Carex retroflexa Muhl. 

 Fig. 879. 



Carex retroflexa Muhl. ; Willd. Sp. PI. 4: 235. 1805. 

 C. rosea var. retroflexa Torr. Ann. Lye. N. Y. 3 : 389. 

 1836. 



Culms very slender, erect, rather stiff, 8'-i8' tall, 

 smooth or roughish above. Leaves i"-ii" in width, 

 mostly shorter than the culm ; lower bract bristle- 

 form, sometimes 2' long, usually shorter ; spikes 4-8, 

 normally androgynous, subglobose, 4-io-flowered, the 

 upper all close together, the lower i to 3 separated; 

 perigynia broadly ovoid with slightly raised margin, 

 radiating or reflexed at maturity about \\" long and 

 somewhat more than I" wide, smooth, green-brown, 

 compressed, but corky-thickened, biconvex, and finely 

 nerved toward the base, tapering upwardly into a 

 smooth 2-toothed beak more than one-third the length 

 of the body ; scales ovate, hyaline, acuminate, soon 

 falling, about half as long as the perigynia; stigmas 2. 



In woods and thickets, Massachusetts to Ontario, 

 Michigan, Florida and Texas. May-July. 



13. Carex texensis (Torr.) Bailey. Texas Sedge. Fig. 880. 



Carex rosea var. texensis Torr. ; Ann. Lye. N. Y. 3 : 389, 

 hyponym. 1836. 



Carex texensis Bailey, Mem. Torr. Club 5: 97. 1894. 



Similar to the preceding species, culms very slen- 

 der, erect, smooth, 6'-i8' tall. Leaves spreading or 

 ascending, soft, about *" wide, shorter than the 

 culm ; lower bract commonly filiform, sometimes 

 elongated ; spikes 4-7, 4-8-flowered, all close together 

 in a narrow head i'lj long, or the lower ones sepa- 

 rated ; perigynia narrowly lance-ovate or lanceolate, 

 plano-convex, with slightly raised margin, corky- 

 thickened and finely nerved towards base, green at 

 maturity, radiating or widely spreading, about \\" 

 long, i" wide, the smooth, tapering beak about one- 

 half as long as the body ; scales lanceolate or ovate, 

 hyaline, acuminate, less than one-half as long as the 

 perigynia ; stigmas 2. 



Southern Illinois and Missouri to South Carolina, 

 Alabama and Texas. April-May. 



