98 



PLAjST^ WRIGHTIANvE. 



VI. 



tho corolla, composed of 15 to 18 linear-lanccolatc hyaline palcae (which are broader 

 than in H. 'Wislizeni), with a very strong hispid midrib, produced at the apex into 

 a short hispid-barbellate awn. The aspect of thc heads in fruit is something like 

 thosc of Pctalostcmon corymbosum. 



Galinsoga parviflora, Cav.^ var. Caracasana. Vargasia Caracasana, DC. 

 ProJr. 5. p. 676. .Valley of Coppcrmine Creek, New Mexico ; Aug., Oct. (1267.) 



The achenia of the ray are sh'ghly hairy near the summit, and furnished with a 

 very small setiform pappus, as De Candolle characterized Vargasia, much more 

 rcduced than in the figure in Deless. Ic. Sel. 4. t. 47. 



G. PARViFLORA, var. slmicalva : acheniis radii glaberrimis calvis. — Side of 



mountains, at the copper mines : 



Oct. (1268.)* 



Baileya multiradiata, Ilarv. 8f Gra?/, Pl. Fendl. p. 106 ; Torr. in Emory^ 

 Rep. p. 14:4. t 6. Valleys between Eagle Springs and the Rio Grande; and on the 

 Mimbres; July. Near El Paso, abundant ; April, May. (1269.) 



B. TLENiRADiATA, Havv. ^ Grav^ L c. Valleys west of Chiricahui Mountains 



Sonora; Scpt. (1270.) 



AciiiLLEA M1LLEFOLIUM5 Linn. Mountain ravinc near the Mimbres ; Oct. (1271.) 

 AnTEMisiA DRACUNCULoiDEs, PursJi. ; Grai/^ PL JVright p. 124. Hills, around 



the coppcr mines, New Mexico ; Oct. (1272. 



A. filifolia, Torr. Valley of Coppermine Creek; Oct. (1273.) 



A. Canape^sis, Michx. ; Torr. 8f Graij., FL 2. p. 417. Hills ancl valleys around 

 the copper mines; Ang., in flower; Oct., ih fiuit. (1274.) — A form with the 

 radical leaves cancscent. 



A. LuDOYiciANA, Nuft. / Torr. §• Graj/, l. c. Side of mountains at the copper- 

 mines; Oct. Also on mountains near Conde's Camp ; Sept. (1275.) Also a small- 

 leaved and very canescent form, like Wrighfs No, 391. (1276.) 



A. LuDoviciAXA, var. foliis lobisve lineari-Ianceolatis supra glabratis. — Valleys 

 near the copper mines; Oct. (1277.) — .A form resembling Lindheimer's No, 442, 

 and approaching that called A. Mexicana. 



A. LuDoviciANA, var. Mexicana, forma tenuifolia. — Mountains around the cop- 

 per mines ; Oct. (1278.) — Lobes of the leaves finer, and the involucre less pubes- 

 cent, than in Lindheimer's No. 444, which I cannot specifically distinguish from A. 

 Ludoviciana. — Collectcd witli the above is a plant with similar and canescent 

 leaves on the sterile shoots ; but those of the fertile stems glabrate, pinnately 3 

 5-parted, with the lobes and rhachis nearly filiform, (12 



Gnapiialium PALusTiiE, Nutt. / To?T. §* Grai/, Fl. 2. p. 427. Sandy banks of 

 e Rio Grande above EI Paso; July. (1280.) 



The following is a Nevv Mexican represcntative of a Californian and Oregon genus : 

 Latia (Madaroglossa) Neo-Mexicana (sp. nov.) : hlspida, parce glandulosa ; foliis lincaribiis inte- 

 gerrlmls ; ligulis trifidis albis ; acheniis radii pappo parvo palcacco subdimidiato laciniato coronatis, disci 

 parce pilosis ; cset. fere L. glanduiosa^. — Ncar Sunta Barbara, New Mexico, Aug., Dr. J. M. Bigdoio. 

 (Commuiiicuted by Dr. Torrey.) — This migbt, perhaps, have becn taken for Layia glandulosa, if it were 

 not for thc constant presence of a pappus in the ray-flowers ; in wliich respect it diircrs not only from 

 the rest of the genus, but from the sole distinguishing charactcr of the division Madlecc. The character 

 of the gonus and of the scction Madaroglossa must accordingly be extended in tliis particular. 



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