516 PROCEEDINGS OF THE AMERICAN ACADEMY. 



in part, not however Sell. Bip. in Seem. Bot. Herald, 304. — Appar- 

 ently common about Bogota, where coll. by Funck & Schlim, without 

 number, Holton, no, 364 ; also in Ecuador at Chiquiribamba, altitude 

 3,000 m., Andre, no. 4444. 



= = = Fruiting pales as in the last group but their points decidedly 

 recurved and uncinate. 



a. Leaves rarely lobed, tomentose beneath. 



21. M. UNCINATA, Sch. Bip. 1. c. 406. Shrub, 2 to 4 m. high : sordid- 

 or canescent-tomentose ujoon the younger parts : leaves ovate-lanceo- 

 late, serrulate, undivided or sub-3-lobed, caudate-acuminate at the apex, 

 narrowed to an inconspicuously or obsoletely biauriculate base ; petioles 

 tomentose, 2 to 3 cm. long : heads numerous in an open corymb : fruiting 

 pales conduplicate, obovate, somewhat narrowed below, stramineous, 

 passing at the summit into a small recurved point. — Hemsl. 1. c. 166. 

 ■^—Mexico, Cumbre de Estepa, Z2'eZ»»zrt«7?, no. 484, also mountains of 

 Oaxaca, Pringle, no. 4929, E. W. Nelson, nos. 1853, 1959, C. & E. Seler, 

 no. 1512, C L. Smith, no. 243. Type number in herb. Gray. 



I. Leaves mostly angulate-lobed, pruinose-tomentulose beneath. 



22. M. PATENS, Gray. Shrub, 2 to 4 m. high : branches pruinose- 

 puberulent : leaves broad and distinctly 3(-5)-angled or -lobed, abruptly 

 contracted to a biauriculate base, green and scabrous above, paler beneath, 

 1.2 to 2 dm. long, 7 to 14 cm. broad, apex and upper lobes acute, the 

 lower angles mostly obtuse ; petioles 2 to 3 cm. long: corymb 2 to 3 dm. 

 broad ; heads (inch rays) 2 to 3 cm. broad ; pedicels slender ; pales much 

 as in the preceding, at length very large, 1.1 cm. long; the wings with 

 sliort rounded lateral lobe. — Proc. Am. Acad. xxi. 388. M. atriplici- 

 folia, Sch. Bip. in Seem. Bot. Herald, 304, as to plant Seemann, but not 

 as to synon. 31. arborescens, Hemsl. 1. c. 164, in part, not Montagncea 

 arborescens, DC. 1. c. 565. — S. W. Chihuahua, Palmer, August to 

 November, 1885, no. 164, Goldman, no. 216; Sonora, altitude 1,200 m., 

 Hartman, no. 302 ; N. W. Mexico, Seemann ; Alamos, Palmer, no. 361 ; 

 Oaxaca at Jayacatlan, altitude 1,300 m., L. C. Smith, no. 266. Type 

 in herb. Gray. 



= = = = Fruiting pales retuse at the summit and tipped with a short straight 



mucro. 



23. M. SUBTRUNCATA, Gray. Branches somewhat 4-angled ; branch- 

 lets, pedicels, and petioles subglabrous : leaves ovate, serrate, acuminate, 

 with or without one or two obtuse angles at the sides, truncate or broadly 



