APPENDIX a. BOTANY. 263 



EUPHORBIACE^E. 



Euphorbia corollata, Linn.; Pursh, Fl. 2, p. 607 ; Torr. Fl. N. 

 York, 2, p. 175, t. 99. On the Washita ; July. 



E. margin ata, Pursh, Fl. 2, p. 607 ; Torr. in Ann. Lye. N. York, 2, 

 p. 224. Main Fork of Red River; July 8. Upper part of the stem 

 hairy. 



E. helioscopia, Linn.; Torr. Fl. N. York, 2, p. 174, (excl. syn. 

 Pursh ;) Gray, Bot. N. States, p. 405. Headwaters of the Trinity ; fl. 

 May. 



Stillingia lanceolata, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 

 5, p. 176. S. sylvatica 0. salicifolia, Torr. in Ann. Lye. N. York, 2 

 p. 245. Middle Fork of Red River; fl. June 4. 



Hendecandra Texensis, Klotsch in Erich. Arch. (1841) 1, p. 252 ; 

 Engel. and Gray, PI. Lindh. 1, p. 53. Croton muricatum, Nutt. in 

 Trans. Amer. Phil. Soc. (n. ser.) 5, p. 153. H. multiflora, Torr. in 

 Frem. First Rep., p. 96. Middle Fork of Red River ; fl. and fr. June 22. 



Gynamblosis monanthogyna. Engelmannia Nuttalliana, Klotsch, 

 1. c. Croton monanthogynum, Michx. Fl. 2, p. 215. C. ellipticum, 

 Nutt. Gen. 2, p. 235, (excl. syn.;) Torr. in Ann. Lye. N. York, 2, p. 245. 

 Main Fork of Red River; June 24. The Eri'gelmannia of Klotsch, which 

 is based on Croton ellipticum of Nuttall, must give place to the earlier 

 genus of the same name of Torr. and Gray. I propose for it a manu- 

 script name given to the plant many years ago, when revising the 

 Euphorbiacem of the United States. Klotsch is wrong in referring Cro- 

 ton monanthogynum to Hendecandra maritima. In the young specimens 

 of Captain Marcy all the staminate flowers are 8-10 androus: and the 

 later flowers are not unfrequently hexandrous. The petals and sepals 

 vary from three to five. 



Tragia ramosa, Torr. in Ann. Lye. N. York, 2, p. 245. T. angus- 

 tifolia, Nutt, in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 172. T. 

 brevispica, Engel. and Gray, PI. Lindh. 1, p. 54. North Fork of the 

 Red River ; June. 



