VI. PLANTS WRIGHTIANJE. 63 



of this singular new genus, of the tribe Sicyoidese, is drawn both from the dried 

 specimens and from living plants raised from their seeds in the Cambridge Botanic 

 Garden. 



GROSSULACEiE. 



EiBEs TENUiFLORUM, Liiidl Bot. Rcg. t. 1274 1 Banks of the San Pedro, Sonora, 

 Sept. ; in fruit only. Cimieluque Springs, Chihuahua, April ; in flower and fruit. 

 (1093.) 



R. LEPTANTHUM, Gray, PI. Fendl. p. 53. Sides of mountains at the copper mines. 

 New Mexico; Aug. (1094.) — "Stems 3 to 5 feet high." Leaves mostly larger 

 and less fascicled than in Fendler's specimens. 



FOUQUIERIACE^. 



FouQUiERA SPLENDENS, Eugelm. in Wisliz. Mem. N. Mex.ih 98 ; Gray, PI. Wright. 

 p. 76. Rocky hills of the San Pedro, Western Texas, May ; in fruit. Hills 

 around El Paso, May ; in flower. — Mr. Wright has called my attention to a sin- 

 gular structure of the leaves in this plant, which is Avell shown in the growing 

 shoots of some of the specimens ; namely, that the spines are the persistent petioles 

 of the cauline leaves, or rather a dorsal portion of them, to which a long and 

 slender downward prolongation of the blade of the leaf is adnate for its whole 

 length, and from which it separates, Avhen full-grown, from the apex to the base. 

 The foliaceous portion soon falls away, leaving the long and naked spine, from the 

 axil of which a cluster of subsessile secondary leaves is developed. The spine itself 

 is decurrent on the stem into an elongated piihinus or ridge, which extends down- 

 ward quite to the next axil directly underneath.* 



CRASSULACE^. 



Sedum Wrightii, Gray, PI. Wright, j). 76. Crevices of rocks at the copper 

 mines, New Mexico ; and at Santa Cruz, Sonora ; Sept., Oct. (1095.) 



SAXIFRAGACEiE. 



Heuchera sanguinea, Engelm. in Wisliz. Mem. N. Mex. p. 107. In ravines, at 

 Santa Cruz, Sonora; Sept. (1096.) — " Certainly the most ornamental species of 

 the genus." The flowers are deep red, 4 or 5 lines long, crowded in a simple or 

 occasionally branched thyrsus of an inch or two in length. As in other species, 

 the scape is sometimes perfectly naked, and sometimes furnished with small leaves. 



H. rubescens {Torr. in Stansh. Rep. p. 388. t. 5): glabella; scapo subfoli- 

 ato vel nudo; foliis cordato-rotundis sublobatis inciso dcntatis ciliatis, dcntibus 

 brevibus setiferis; panicula laxa multiflora; floribus virido-albis mox rubcllis ; 



• Fouquiera formosa, H.B. K. has recently (in Kongcl. Danske Vidcnsk. Selk. SLrifter, for 1851) been 

 characterized and figured by Liebmann as a new and anomalous genus of Polemoniacerc, named Phile- 

 tcBvia horrida. From the details of the seeds, it appears that the wing differs from that of F. splendens 

 in being deeply cleft at both ends. — Kunth writes the name Fouquieria ; but De Candolle, Endhcher, 

 &c. write it Fouquiera. 



