f 



39 



165. Mollugo verticlllata L. Linipia cjiuon (Presidio comity). A remarkalilo 



form of this widely distributed and polyinorpbous species. Tlio leaves are 

 all very short .ami broadly obovate, but leaf contours caa not be made to de- 

 fine even a variety in this species. 



166. Daucus piisillus Miclix. Brazos Santiajifo. 



167. Eryngium Leavenworthii Torr. & Gray. Pena (Dnval county). 



168. Eryngium nasturtiifoliiim Jnss. Santa Maria (Cameron county). A south 



Mexican species, found in northern Mexico by Palmer and now discovered 

 within our southern border (in the southernmost Gulf county) by Nealley. 



169. Eryngium Wrightii Gray. Chenate Mountains (Presidio county). Heads 



sometimes more than 12'""' high, and bracts not twice as long. 



170. Ammoselinum Popei Torr. & Gray. Brazos Santiago. 



171. Foeniculum vulgare Giertn, Brazos Santiago. 



172. Apium leptophyllum F. Muel. Brazos Santiago. 



173. Bowlesia lobata Ruiz <fe Pavon. Brazos Santiago. 



174. Ammi majus L. Brazos Santiago. This species was very probably collected 



on ballast, although possibly an introduced weed. It has been found on 

 ballast at Philadelphia, and at Portland, Oregon. 



175. Bouvardia triphylla Salisb., var. angustifolia Gray. Limpia canon (Presidio 



county). 



176. Houstonia acerosa Gray. Chisos Mountains (Foley county). 



177. Houstonia angustifolia Michx. Chenate Mountains (Presidio county). 



178. Houstonia angustifolia Mx., var. filifolia Gray. Cor])us Christi (Nueces 



county) and Balliuijer (Runnels county). 



179. Spermacoce glabra Michx. Brazos Santiago. 



180. Galium microphyllum Gray. Chenate Mountains (Presidio county). 



181. Galium virgatum Nutt. Brazos Santiago. 



182. Galium Wrightii Gray. Clienate Mountains (Presidio county). The bristles 



of the fruit are not always as long as its diameter. 



183. Stevia serrata Cav. Limpia canon (Presidio county). 



184. Carminatia tenuiflora DC. Limpia canon (Presidio county). Smaller plants 



than usual, some being not more than inches high, with leaves proportion- 

 iilly rtMluced. 



185. Eupatorium ageratifolium DC, var, acuminatum Coulter, n. var. Branch- 



lets, lower leaf surface, and involucral bracts finely and often densely pubes- 

 cent: leaves smaller (36 to less than 25""" long), and sharply acuminate. — 

 Point Isabel. 



186. Eupatorium Greggii Gray. Chenate Mountains (Presidio county). 



187. Eupatorium solidaginifolium Gray. Limpia canon (Presidio county). The 



thyrsoid panicle becomes much larger and more lax and leafy than in the 

 type specimens, and anything but "small," as in the original description. In 

 the present specimens the panicle sometimes becomes !.'> to 20'^'" long and 14 

 to IS™' across the base, being at the same time very lax and leafy. Associated 

 with these large i)anicled specimens are others with panicles of the described 

 dimensions. 



188. Eupatorium Wrightii Gray. Chisos Mountains (Foley county). This beau- 



tiful species does not seem to have been reported within our border since 

 Wright's original collection, the station of w^hich was in the same gener.al 

 region as the present collection. Priugle collected it in 18H5 in the mountains 

 of Chihuahua. 



189. Brlckellia oliganthes Gray, var. crebra Gray. Chenate Mountains (Presidio 



county). This is the saim^ as Pringle C)'.!;') (of 188.'j), from Chihuahua. The 

 leaves are decidedly pt^tioled and very different from tliose of the species. 



190. Kuhnia roamarinifolia Vent. Limpia canon (Presidio county). 



191. Liatrls punctata Hook. Santa Anna (Coleman county). 



