43 



259. Hymeimtherum acerosum Gray. Screw Beau (Presidio couiily.) 



260. Hymeiiatherum Hartwegi Gray. Screw liean (Prenidio county ).\ 



261. Hymeiiatherum pentacheetum Gray. San Diej^o (Dtival county). 



262. Hymeiiatherum tenuilobum DC. Pena (Duval county), and Rio Grande 



City (Starr county). 



263. Hymeiiatherum Wiightii Gray. Corpus Cliristi (Nuecea county). 



264. Pectis filipes Gray. Chcnale Monntains (Presidio county). 



265. Pectis papposa Gray. Clienato MountaiuH (Presidio county). 



266. Pectis tenella DC. Kio Grande City (Starr county). 



267. Heleiiium amphibohim Gray. Devil's Kiver (Val Verde county). 



268. Heleniuni microcephalum DC. Kin Grande City (Starr county). 



269. Amblyolepis setigera DC. Balliufrcr (liunuells county). 



270. Gaillardia laiiceolata Michs. Pena (Duval county). DiftciH from the ordi- 



nary typo in the fact that the leaves are all more or less toothed or even 

 lobed, ratlier than " entire or sparsely serrate." 



271. Gaillardia pinnatifida Torr. Eallin}?er (Runnels county), and Screw Bean, 



Chenate Mountains, and Lini])ia caQon (Presidio county). The Chenate 

 Hpeciinens have almost all the leaves narrowly linear and entire. 



272. Gaillardia pulchella Fou^. Point Isahel. 



273. Actinella linearifolia Torr. & Gray. Santa Anna (Coleman county), and 



Linipia canon (Presidio county). 



274. Actinella scaposa Nutt., var. linearis Nntt. Peini (Duval county), Chenate 



Mountains and Sen^w ]5eau (Presidio county). In the Pena specimens the 

 raya are larger than usual, sometimes beconiinjf 14 to It}""" long. 



275. Artemisia filifolia Torr. Screw Bean (Presidio county). 



276. Artemisia Ludoviciana Nutt. Camp Charlotte (Ixion county). With nar- 



row leaves and completely whito-tomeutose. 



277. Artemisia Mexicana Willd. Limpia canon (Presidio county). 



278. Artemisia redolens (hay. Chisos Mountains (Foley county). This species is 



new to our borders, having been described from Pringle's collection of lb85 

 (no. y!>(5) in the inountaina of Chihuahua. 



279. Senecio Douglasii DC. Screw Bean and Linipia canon (Presidio county). 



280. Senecio lobatus Pers. IJrazos Santiago. 



281. Senecio niultilobatua Torr. & Gray. Liinpia canon (I'n^sidio county). 



282. Cnicus altissiiuus Willd., var. filipendulus Gray. Point Isabel. 



283. Perezia nana Gray. I'ena (Duval county). 



284. Tiixis angustifolia DC. Chisos Mountains (Foley c<mnty). 



285. Pyirhopappus Carolinianus DC. Point Isabel. 



286. Pyirhopappus multicaulis DC. Brazos Santiago. 



287. Lygodesmia aphylla DC, var. Texana Torr. & Gray. Screw Bean (Pre- 



sidio county). 



288. Lobelia Berlandieri A, DC. Brazos Santiago. These specimens are undonbt- 



edly ikrhmdicr J177, which Dr. Gray suggests {Siftiopt. FL ii. 7) may bo a 

 depauperate form of L. CHffortiana L. It also approaches L, siihiindu in 

 habit, the rosulate tuft of root-leaves being entirely nuiiko L. Vhffortiana, 

 but the seeds are those of the latter species. If not entitled to specific rank 

 it should ])robably become a variety orfiinn oi L, Feat/aiia Gray. 



289. Lobelia cardinalis L. Chenate Monntains (Presidio county). The narrow 



leaves suggest L. xplcndcns Willd., but the plants are completely pubescent. 

 These two species are too near together. 



290. Lobelia fenestralis Cav. Chenate Mountains (Presidio county). 



291. Campanula rotundifolia L. Chenate Monntaius (Presidio county). 



292. Saniolus ebracteatus HBK. Camp Charlotte (Ixion county). 



293. Menodora heterophylla Moricaud. Dry hills, Roma (Starr county), an(J 



Balliugor (Runnels countv). -: 



