5 



r 



I. — Carex CEPPIALOIDEA, Dewey, Cat. PI. Mass. 262 (1840), 



V. s. ; Sartw. Exsicc. No. 21 (1848), v. s. 

 C. nmrtcata, L., van ccphaloldca, Dewey, Sill. Journ. (I.) xi. 



308 (1826). 

 C. cephalophora, Muhl, var. (?) ft., Torr. Monog. 289 (1836). 

 C, sparganioides, Muhl, var. cephalotdea /C^rcy, Gray's Man. 

 1st Ed. 513 (1848) V. s. Hb. Carey. 



Distinguished from C. cephalophora, Muhl., with which it is 

 commonly confounded, by its greater size, much broader leaves, 

 its more numerous (5 to 10) spikes, which are disposed in an in- 

 terrupted head an inch or more long, and larger and longer- 

 pointed perigynia and shorter scales. It also resembles small 

 and short headed forms of C. sparganioides, Muhl., from which, 

 however, it appears to be abundantly distinct. In some cases it 

 counterfeits C. stramiiiea, Schk. var. 7nirabilis, Tuckm., but is at 

 once separated by the position of the staminate flowers.— Copses, 

 mostly in shade, from Western Massachusetts to Michigan. (251a). 

 This species has been a source of great perplexity to students 

 of tl;e genus, owing, as it now transpires, to the fact that two 

 . species have been united by some, and that the name has been 

 wholly transferred from one species to the other by others. Boott 

 describes another species as C, cephaloidea, and Dewey Jiimself 

 accepted the transfer of the name (Sill. Journ. 1866, 326), and 

 left his original species nameless. The other species, with which 

 this has been confounded, may be called 



^ 2. — Carex gravida, 



C cepJialoidea, Sartw. Exsicc. No. 75 (1848), v. s. ; Boott, 

 III 123 t 395 (1862), V. s. Hb. Boott.; Dewey, Sill. Journ. 

 (II.), xli. 326 (1866); Olney, Exsicc. fasc. iv. No. 15 

 (1871), V. s. ; Bailey, Proc. Amer. Acad, Arts and Sci. 

 xxii. 141 (1S86). 



Most like C. alopecoidea^Txickvn. : culm thinner, more sharply 

 three-angled; spikes few (four to seven), globular or broader than 

 long, all contiguous and forming a small and oblong simple head ; 

 perigynium about twice larger than in C. alopecoidea, not stipi- 

 tate, more abruptly contracted at the top, gravid, somewhat pol- 

 ished, conspicuously spreading; leaves narrow and very long- 

 pointed. (239a). 



Northern Illinois, Vascy^ Bebb^ to Northwestern Iowa, Cratty. 



