102 



Eupatorium pauperculum Gray. Stem 18 inches to2 feet liigh : inflorescence corym- 

 bose : llowera creamy white ; proper tube of corolla lon<r and slender. Grows iu 

 shade npou the upper part of the Alamos Mountain. March 26 to April 8. No. i>Hl. 

 According to Syn. Flora it is credited to Priuglo alone from Arizona, but Pariah 

 collected it at Lowell, and Leramon (No8. 183 or 201) iu 1881 found it at Santa 

 Catalina Mountains, and distributed it as E. pyctiocephalum Less. 



Eupatorium Palmeri Gray. Proc. Amer. Acad. xxi. 383. Collected by Palmer iu 1885 

 and recently (1800) by Pringle. 



Barroetea subuligera Gray. Leaves serrate, not crenate. Alamos. Sept. 16 to .30 



No. 677. 



Brickellia Priuglei Gray. The plant grows from 1 to U feet high ; rare. Found in 

 the higher part of the Alamos mountain, Marcli 2G to April 8. No. 286. 



Brickellia diffusa Gray. Found in the shade od the bank of a creek. Alamos. Sept 

 K; to 30. No. 812. 



Aster tanacetifolius H. B. K. Common on grassy creek bottoms. Alamos. Sept 

 16 to 30. No. 654. 



Erigeron Alamosanum, n. sp. Slender annual a foot or so high, simple, or more or 

 less branched, slightly hirsute and granular: radical and lower leaves ovate io 

 broadly spatulate, remotely toothed; upper leaves narrowly spatulate to linear: 

 peduncles liliform: involucre 1 to 2 Hues long, its bract slender, acute, with 

 scarions margins and a brown gland along the back: rays abont 50, slender, violet. 

 —Grows half way up the mountan side in shade of rocks. Alamos. March 26 to 

 April 8. No. 348. This is nearest E. divergens, but it has dillcrent pubescence, 

 smaller heads, and fewer rays. 



Baccharis glutinosa Pers. Six to eight feet high. Common along water-courses 

 near Alamos. Sept. 16 to 30. No. 719. 



Lagascea decipiens Hems. A common loose-growing plant 5 feet high: flowers 

 orange-colored. Near Alamos. March 26 to April 8. No. 401. 



Gnaphalium Sprengelii Hook and Arn. Collected near the top of Alamos Moun- 

 tain, March 26 to April 8. No. 349. What appears to be the same species found 

 Sept. 16 to 30. No. 678. 



Milleria quinqueflora L. This plant is about 3 feet high. It grows along water 

 courses in dense shade. Alamos. Sept. 16 to 30. No. 722. 



Guardiola platyphylla Gray. A bushy shrub about 3 feet high. Common on the 

 gravelly bods just above the river near Alamos. March 26 to April 8. No. 280. 



Melampodium cupulatum Gray. Common along ravines, on hillsides, and in 

 canons. Alamos. September 16 to 30. No. 720. Also common at Agiabampo. 

 It seems to liave been collected by Palmer in 1860. 



Pranseria cordifolia Gray. A plant knowu only from the collections of Pringle & 

 Parish. Dr. Palmer reports it as very common about Alamos on wooded hillside. 

 It grows about 2 feet high and is quite bush-like. The young stems show an 

 intense whiteness which disappears, somewhat, in drying. Alamos. Marcli 26 

 to April 8. No. 391. 



TragoceroB Mocinianus Gray. Proc. Amer. Acad. xxi. 388. Flowers creamy white. 

 Very common on sandy bottoms and in canons, but has only been collected 

 before by Palmer in SW, Chihuahua in 1885. Pringle's No. 2450 from Jalisco 

 distributed as this species answers better to T. microglossus DC. Alamos. Sep- 

 te'uber 16 to 30. No. 646. 

 Zinnia linearis Bcnth., var. latifolia, n. var. Low and somewhat spreading: 

 leaves broader, lanceolate, 1 to H inches long, 2 to 4 lines broad, 3-nerved : rays- 

 few, always 7: akenes with 2 unequal awns.— Alamos. March 26 to April 8. 

 No. 352. Only a single specimen found near the base of the mountain. Although 

 this plant does not seem to answer very well for Z. linearis, yet it is very sim- 

 ilar in the color of the flowers and in its akenes, but on account of the scanty ma- 

 terial it seems best to make it a form of this species. 



