The Flora of the Cayuga Lake Basin 103 



10. Scleria Berg. 



a. Disk obsolete ; scales 2-3 mm. long ; flowers in several distinct spicate clusters ; 



plant nearly or quite glabrous. 1. S. verticillata 



a. Disk bearing 6 tubercles ; scales 4-5 mm. long ; flowers irregularly aggregated in 



a single cluster ; plant very pubescent. 2. 5". pauciflora, 



var. caroliniana 



1. S. verticillata Muhl. 

 Marl meadows ; rare. Aug. 



"Junius" (Sartwcll) ; Lowery and Newton Ponds (D. !). 



Mass. to Ont. and Minn., southw. to Fla., Tex., and Mex., especially along the 

 coast. Found also in W. I. 



2. S. pauciflora Muhl., var. caroliniana (Willd.) Wood. 

 Moor of marl bogs; very rare. July 15-Aug. IS. 



Collected in 1893 on the moor of Lowery Ponds (K. M. IV.) but not seen since, 

 reported in Bui. Torr. Bot. Club 21:176, 1894. Elsewhere in N. Y. State, reported 

 only from the vicinity of New York and from "wet meadows, hillsides," Greece, 

 Monroe Co. (Bradley). 



Mass. to Ga. along the coast, cent. N. Y., and Ohio. 



11. Carex (Rupp.) L. 

 a. Spike solitary, terminal. page 



b. Scales not foliaceous; beak not abrupt. (Primocarex.) 



c. Perigynia elliptic, obtuse, erect; plant cespitose 1. C. leptalea 115 



c. Perigynia subulate, acute, reflexed, easily and elastically deciduous ; plant 



stoloniferous 2. C. pauciflora 115 



b. Scales, at least the lower ones, foliaceous ; beak abrupt, slender. 



c . Bodies of the perigynia elliptic-oblong ; pistillate flowers 3-9 ; lowest scale 

 0.5-1.5 cm. long ; staminate scales 2-2.3 mm. long, pale, with a green mid- 

 rib; staminate spike 0.7-0.9 mm. in diam 64. C. Willdenowii 125 



c. Bodies of the perigynia subglobose ; pistillate flowers 2-3 ; lowest scale 

 1.5-5 cm. long; staminate scales 1.6-1.8 mm. long, with a dark transverse 



band near the tip; staminate spike 0.4-0.5 mm. in diam 65. C. Jamesii 125 



a. Spikes several. 



b. Spikes normally bisexual and similar, all containing staminate and pistillate 

 flowers in about the same relative proportions ; stigmas 2 ; perigynia plano- 

 convex, rarely terete. (Vigna.) (2d b, p. 108.) 

 c. Spikes staminate at apex. (Acroarrhenae.) (2d c, p. 105.) 

 d. Perigynia few, very plump, almost terete, nearly or quite beakless ; spikes 



scattered ; plants low and very slender 24. C. tenella 118 



d. Perigynia convex on both surfaces, plano-convex, or flat, usually two- 

 edged and acute or beaked. 

 e. Plants cespitose or with short creeping rhizomes. (2d e, p. 105.) 

 /. Perigynia subulate-lanceolate, 4-7 mm. long, spongy-thickened at 

 base, strongly nerved ; spikes aggregated ; culms broad, soft, wing- 

 angled; leaves 4-15 mm. wide. 

 g. Perigynia 4 mm. long; hyaline part of leaf sheath usually trans- 

 versely rugose ; 3. C. stipata 115 



g. Perigynia 5-7 mm. long ; hyaline part of sheath rarely rugose, 



thickened at orifice 4. C. laevivaginata 115 



/. Perigynia elliptic-lanceolate to oval or ovoid (6 mm. long or less), 

 nearly nerveless except in no. 10 ; spikes, culms, and leaves various. 

 g. Spikes or branches of the inflorescence 10 (12) or less. (2d g, 

 p. 105.) 



