Plante Lindheimeriane. 233 
Texas, render it doubtful, however, whether this plant is spe- 
cifically different. Seg (1, 26, 
172, GEISELERIA GLANDULOsA, Klotzsch, in Erichs. Ar- 
chiv. I. (1841) p. 254. Dry woods, Houston. May, June. 
The calyx of the sterile flowers is 5-parted, and the stamens’ 
9 or 10. 
173. CROTON ARGYRANTHEMUM, Michx. Margin of woods, 
Houston. . April— June. "The ovary is on an orbicular, not 
9-glandular disk. : 
174. EurnonB1A BrcoLom (m. sp.): annua; caule erecto 
foliis bracteisque undique villosis seu pilosis ; foliis subsessili- 
~ bus oblongo-lanceolatis vel lineari-oblongis cuspidatis basi ob- 
tusis ; bracteis lineari-ligulatis elongatis basi attenuatis margine 
membranaceis decolorato-albidis ; glandulis involucri villosi 
margine petaloideis. suborbiculatis ; capsulis dense lanatis; 
seminibus sparsim rugulosis.  concoLor: marginibus deco- 
loratis bractearum angustissimis aut subnullis ; foliis latioribus. ` 
Prairies near Houston. June— September. Also Texas, 
Drummond. Arkansas, Beyrich, &c. A- handsome species, _ 
resembling E. marginata, but distinguished by the narrower 
hairy leaves, much narrower bracts, &c. 3 
15. APHORA MERCURIALINA, Nutt. -in Trans. Amer. 
Phil... Soc, (N. Ser.) 5, p. 174. Serophyton pilosissimum, 
Benth. Bot. Voy. Sulphur, p. 53. In denudated soil, dry 
prairies, &c, Arkansas and Texas. May — July. Endlicher 
having entirely overlooked this genus of Nuttall’s, Mr. Bentham 
has lately characterized it anew under the name of Serophyton. 
9 his excellent character we have only to add, that the 
P S are sometimes dicecious, or subdicecious, as, indeed, is 
sentoned by Nuttall in the case of the original species. 
What N uttall takes. for sterile filaments in the fertile flowers, 
Bentham describes as petals, and so Nuttall's name becomes 
unmeaning, which, however, is no great objection. Mr. 
Bentham’s Californian species must, therefore, bear the name 
of Aphora lanceolata. His remaining Texan species, the 
Aphora Drummondii, was also collected by Lindheimer, but 
voL: v. 16 
& 
