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JULY, 1876. 



JVo. 9. 



I Carices IX Washington, D. C— In the vicinity of Washin,^ton, D. C, there 

 are about 60 species of Cartx, of which some are interesting and deserving a short 

 notice. 



Carex WillcUnovii, Schk. is frequent on woody hill-sides. C Stetidellii, Kunth. 

 is more abundant but in deeper shade. C. bromoides, Schk. I have found only in 

 bogs near the river; never on nj^land bogs. C. mvricnta, L. occurs in the grounds 

 of the Ag. Dept., probably introduced among foreign seeds. We have C. spargan- 

 ioides, Muhl., C. cephalophora, Muhl., and C Muhlenbergii, Schk., besides one or 

 two intermediate forms difficult to classify. I have only seen C. canescens, L. from 

 one locality; I did not expect to find it so far south. C. fcena, Willd. is common 

 in meadows and low grounds near the river. A variety of C aquatilis, Wahl. is 

 fovmd in the river marshes. It is less robust than the northern form, with more 

 slender spikes, approaching C. striata. C. torta, Boott is quite rare, occurring 

 only in two locilities so far as I have observed. C Shortiana, Dew. occurs in sev- 

 eral localities in low ground, but not in marshes. A remarkable form of C. tetan- 

 ica, Schk. is found in open woods in thin patches. The rhizoma runs near the 

 surface of the groAind, covered with decayed leaves, and sends up numerous tufts 

 of long radical leaves, and but few fruiting culms which are slender and with two 

 or three lax spikes, one of wliich is usually sub-radical and long peduncled. It is 

 the same form which was found in Jeff. Co., X. Y., over 30 years ago by Dr. Wood 

 and named for him C. Woodii by Prof. Dewey. It is a very distinct form if not 

 entitled to be called a species. C. grunularis, Muhl. is rare, but a closely related 

 species C. glaucodea, Tuck, is quite common in open woods in clay soil. C pulles- 

 cens, L. I have found in very small quantity. It appears to be south of its usual 

 range. C. virescens, Muhl. and C. triceps. Michx. are very common, with, I think, 

 the form called C. Synithii, Porter. C. plantaginea. Lam. has not been observed 

 here, but C. platyph>illa, Carey is common, and also the broad leaved form of C. 

 laxiflora, Lam. We have also the O. laxijlura var. stylojUxa (C. stylnflexa. Dew. \ 

 It appears to be worthy of specific rank. C. retrocurva, Dew., one of the most grace- 

 ful of Carices, is abundant, as is also C. digitalis, Willd. but they are perfectly 

 distinct. C. retrocurva ha* glaucous and broader leaves, and the culms are always 

 prostrate, or nearly so. C. oliyocarpa, Schk. and C. Hitchcock iana, Dew. are both 

 here and quite distinct. C. umhellata. Schk. occurs sparingly in the usual situa- 

 tions, and also C. nigro-marginata, Schw. on rich ^^pdy hill-sides. C. Emmonsii, 

 Dew., C. Pennsylvanica, Lam. and C. varia, Muhl. ai-e here with intermediate and 

 puzzling forms, some of which may be C. Nuvai-Anglim, Schw. In moist sandy 

 woods we have sparingly C. vestita. Willd. C. sqnarrosa, L. and C. stenolepis, 

 ToRR. are both frequent in low grounds.— Geo. Vasey, Department of Agriculture, 

 Washington, D. C. 



A NEW Cyperus.— The sedge noticed below was sent me by Mr. Wolf, the dis- 

 coverer, and first published in the January issue of the "Bulletin of the Torrey 



All communications addressed to John M. Coulter, Hanover, Ind. 

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