348 Prof. Dewey on Caricography. 



correct reading would be, No. 36, C. comosa, Boott. As the plant 

 of Linnaeus also inhabits our country, it becomes necessary to 

 give its characters and distinguish it from C. comosa, Boott. 



No. 225. C. pseudo-cyperus, L. Schk. Tab. Mm, fig. 102. 



Spica staminifera solitaria longo-cylindracea erecta pedunculata 

 bracteata; spicis pistilliferis subternis cylindraceis densifloris (im- 

 maturis suberectis) pedunculatis pendulis ti-istigmalicis 7 superi- 

 oribus subapproximatis, infima distanti longo-pedunculata sub- 

 vaginata, omnibus foliaceo-bracteatis ; fructibus divergentibus de- 

 mum retroflexis ovato-lanceolatis brevi-stipitatis rostratis nervosis 

 ore bidentatis vel brevi-fiucatis, squamam ovato-lanceolatam sca- 

 bro-aristatam paulo superaritibus. 



Culm two feet high, sharp-triquetrous, very rough on the edges; 

 leaves linear, flat, nerved, rough, longer than the culm ; bracts 

 long and leafy, the lower especially longer than the culm and 

 more or less sheathing ; staminate spike single, bracteate, with 

 long lanceolate, hispid-awned scales ; pistillate spikes 2-4, long- 

 cylindric, long pedunculate, suberect when young, at length re- 

 curved and pendulous, the lowest distant and longer pedunculate ; 

 stigmas three ; fruit ovate, lanceolate, rostrate, nerved, diverging 

 and finally reflexed, bidentate or with diverging forks; pistil- 

 late scale ovate lanceolate, rough awned, and scarcely equalling 

 the fruit ; bright green, in tufts on the borders of ponds and 



stream s. 



On the specimens of this species from England and Germany, 

 the scales are shorter than the fruit, contrary to the figure of 

 Schk. and most of the descriptions, and the teeth of the fruit 

 vary also, as on our plant, from short and straight to longer and 

 some diverging or furcate. 



C. conwsa, Boott, has larger and thicker stem, leaves and 

 spikes ; fruit longer rostrate and more stipitate ; and the teeth or 

 forks are longer, deeper, much spreading and partially recurved, 

 producing a hairy or comose appearance. Its staminate spike not 

 unfrequently has some fruit at its apex. It is a more common 

 plant, though not very abundant. When compared, the two are 

 readily distinguished by the fruit, though so much alike in very 

 many characters. 



N. B. The Carex, Vol. xlix, p. 48, should be C. Tucker*** 

 Boott. 



Note.— As several species of Carex, which have been describe 

 as having stigmas 2 or 3, have been found to be different species, 

 it is probable that more extended observations will prove all su 

 to be different species which have a different number of stigma 

 as they differ in the form of the seed or achenium. 



