60 33. Trasus. 9. CYPERACE^.. Pl.end.ph. 



Gratnen cvperoides polystachion majuji, spicis teretibus erecfis, Rfdi 

 Syn. 419, polyst. 9. 



Carex vesicaria, Hudson Fl. Ang. 413. 

 Carex rostrata, Withering B.Ar. erf. 2. 1059. 

 Carex ampullacea, Goodenough L. T. 2, 207. 



Bogs and watery places; perennial; May. 



Root creeping; culm upright, 2 feet high, S-sided; angles 

 bald below, rough above the lowest spike ; leaves upright, 

 slender, glaucous ; hractece without sheaths, long, the lowest 

 overtopping the culm ; male spikes 2 or 3, close, very slen- 

 der, pale brown; glumes obtuse, brown, rib yellow; female 

 spikes 2 or 3, distant, cylindrical, obtuse; glumes acute; 

 Jruit very smooth, apex longbeaked, beak diverging at a 

 right angle. 



e. Bractece leajl'ike, sheathing ; spikes fnotstalked, enclosed 

 in the sheaths^ upright^ male solitary ; fruit smooth. 



12. Trasus fiavits. Yellow sedge. 

 Female spikes 3, close, elliptical ; fruit ovate, beaked, 



beaks bent back, 2-toothed; glumes ovate, lanceolate, shorter 

 than the fruit; culm rather smooth. 



Gramen cypeioLdes q. Giamen paluslre echinatum, Rail Syn. 421, 

 polyst. IS. 



Gramen palasfre echinatum, Ger. em. 17. 



Gramen echinatum Germanicum, Park. 1187. 



Carex flava, Lin. S. P. 1384. 



Hedgehog grass. 



Bogs ; perennial ; May and June. 



Root creeping ; culm upright, a foot high, 3-sided, leafy 

 below ; leases pleasant green, upright, broadish, flat, longer 

 than the culm; bractece much higher than the culm, the 

 upper scarcely sheathing, the lower sheathing, and not 

 much spread out ; male spike 1 or 2, lanceolate, upright ; 

 female spikes 3, ovate roundish, the upper close, almost 

 sessile, the lower rather distant, footstalk longer than the 

 sheath ; glumes ovate, yellow, edge white, rib green ; fruit 

 yellowish green, diverging every way. 



^. scaler. Culm rough edged. 



y. duplex. Male spikes 2. 



13. Trasus Oederi. Oeder's sedge. 

 Female spikes 4, roundish ; fruit globose, beaked, beak 



rather straight, 2-toothed ; glume ovate, lanceolate, longer 

 than the fruit; culm smooth. 



