. Monograph of North American Carices. 36a 



Ubs. This species is said to be between C. bidlata and la- 

 custris. It is altogether different from C. aristata, Dewey. 

 (C. Davisii. nobis.) 



105. Carex vesicaria, Lin. 



C. spicis sterilibus subtribus ; fertilibus subgeminis, pedun- 

 culatis, cylindraceis ; fructibus oblongis, inflatis, acumina- 

 to-rostratis, bicuspidatis, gluma lanceolata majoribus ; 

 culmo acute triquetro. 



C. vesicaria, Willd. sp. pi. iv. p. 307. SchJc.car. t. Ss. f. 106, 

 Purshjl. i. p. 45. Muhl. gram. p. 260. 



Culm about two feet high, erect, scabrous on the angles above. Leaves 

 longer than the culm, bright green, 3 — 4 lines broad, smooth. Sterile 

 spikes usually 3, alternate, slender, sometimes androgynous, supported 

 on a common peduncle several inches above the fertile spikes ; glumes 

 oblong-lanceolate, acute, pale brown. Fertile spikes 2 — 3, erect, two 

 or three inches in length, densely fruited, on short exserted peduncles ; 

 glumes ovate, cuspidate, shorter than the fruit, pale brown. Fruit 

 ovate-oblong, gradually acuminate, inflated, bicuspidate. 



Hab. In overflowed meadows ; Pennsylvania to New- York ; 



not common. Flowers in the end of May. 

 Obs. This handsome species is common in Europe. Spikes 



yellowish when mature. 



106. Carex ampullacea, Willdenow. 



C. spicis sterilibus tribus ; fertilibus 2 — 3, cylindraceis, 

 breve pedunculatis, erectis ; fructibus subglobosis, inflatis, 

 rostratis, bifurcatis, gluma lanceolata majoribus ; culmo 

 obtuse triquetro. 



C. ampullacea, Willd. sp. pi. iv. p. 308. Schlc. car. t. Tt. f. 

 107. Dewey car. 1. c. vii. p. 266. Richard, app. Frank, 

 nar. ed. 2. p. 36. 



Hab. Williamstown, Massachusetts. Prof. Dewey. In the 

 woody region of Arctic America. Dr. Richardson. 



