Fig. 268: Carex tvphina: a, inflorescence, X V-y; b, scale, X 5; c, perigynium, X 5. 

 (Courtesy of R. K. Godfrey). 



about 2.5 mm. long and 1.25 mm. wide, silvery-black, minutely pitted, substipi- 

 tate, abruptly contracted into the slender straight style. 



Springy places in N. M. (Grant Co.), and Ariz. (Apache, Pinal, Cochise and 

 Santa Cruz cos.) ; also n. Mex. 



41. Carex Frankii Kunth. Fig. 267. 



Perennial with extensively creeping rhizomes 1-2 mm. thick; culms 2-7 dm. 

 long, 1.5-5 mm. thick basally; basal sheaths brownish, rarely rosy; blades 4-11 

 mm. broad; inflorescence of 4 to 6 ascending spikes; terminal (often exceedingly 

 inconspicuous) spike staminate, 3-50 mm. long, 1.5-5 mm. thick, stramineous or 

 brown; the remaining spikes pistillate, the upper ones overlapping and short- 

 peduncled but the lowest commonly remote with a peduncle to 15 cm. long, 1-4 

 cm. long, 8-15 mm. thick, bristly, with 25 to 130 very close spreading perigynia; 

 bracts sheathing, foliaceous, the blade of the lowest one commonly far-exceeding 

 the inflorescence, the higher ones progressively reduced; scales as long as or 

 longer than the perigynia with the distal part being a wiry awn or bristle; perigynia 

 3.5-5.5 mm. long, with obovoid bodies 2-4 mm. long, olivaceous, inflated, mem- 

 branous, with 10 to 15 nerves much more slender than the internerve spaces, 

 basally tapered and narrowly rounded, apically abruptly short-conic and well- 

 diff'erentiated from the subulate beak (about 1.5 mm. long) and with a strongly 

 bidentate orifice; achenes triangular, 1.5-2.2 mm. long, about 1.5 mm. wide, con- 

 tinuous with the persistent very slender usually straight style which in its lower 

 half has much the same texture as the achene. 



In marshes, boggy areas and mud in seepage areas, edge of streams and about 

 ponds, in Okia. (Johnston, Adair, Murray, Mayes, Washington, Haskell, Atoka, 

 Pittsburg, Pushmataha and Cherokee cos.) and in e. and s.e. Tex., infrequent in 

 n.-cen. Tex., rare in the Trans-Pecos (Franklin and Davis Mts.), in seeps and 



524 



