Pl,end.ph. 9. CYPERACE^. 32. Cavex. 53 



Gramen cyperoides majus angustifolium, Rail Syn, 417, polyst, 2j Cfer. 

 em. 29; Park. J 265. 



Carex acuta /3, Lin. S. P. 1S88. 

 Carex gracilis, Curtis Fl. Land. 4, 62. 

 Carex acuta, Goodenough, JL. 1\ 2,203. 



Watery places ; perennial ; May. 



Rooi creeping; culm 2 feet, high; leaves narrow, pale 

 green ; male spikes 2 or 3, slender ; female 3, slender, 

 drooping at first, but afterwards upright ; glume acute, 

 nearly as long as the fruit. 



/3, minor. Culm not 2 inches high, 



y. major. Male spikes very large, numerous ; glumes 

 liwned, longer than the fruit. 



^. monsirosa. Stamens exserted from the spathellules, 



II. S3. TRASUS. Sedge, 



Spathelle one, imbricate all round ; spathellules 2, sol- 

 dered at the edge, persisting, becoming cartilaginous ; 

 stamens 2 or 3 ; style 1; stigmata S', ake?ii uin 3 -sided, in 

 the soldered capsuliform spathellules. — Root perennial, 

 fibrous or creeping; culm 3-sided; leaves rough on the 

 edge and keel, sheathing; sheaths whole; hractece sheathing 

 or amplexicaul ; flowers spiked ; spikes many, generally 

 unisexual, in the 1st and 2d species androgynous, male 

 flowers above, few, mostly sessile; female flowers below, 

 numerous, either sessile or with footstalks. 



A synoptic view of the species, 

 1. Spikes androgynous.. 



Spike 1, 4 or S-flowered; 

 /rmV reflected ; glumes deciduous T. pauciflorus. 1. 



Spikes 3 to 5, female at top, upright 

 when in flower, drooping when in fruit .... T, atratus. 2. 



2. Spikes of different sexes. 

 a. Bractece membranous ; fruit downy. 



Male spikes footstalked, overtopping the 

 female T. clandestinus. 3. 



AMe spikes sessile, overtopped by the 

 female , , T. digitatus. 4, 



