ROBINSON AND GREENMAN. — GENUS MONTANOA. 513 
* * * Involucral bracts smaller and narrower, linear-oblong to linear. 
+ Leaves oblong-lanceolate, subsessile or attenuate at the base to a winged or rela- 
tively short naked petiole: heads rather few, in leafy cymes or loose panicle, 
12. M. samaensis, Coulter. Suffrutescent (?), “about 3 m. high,” 
cymosely branched above, the branches sordid-tomentose, at length gla- 
brescent: leaves crenate, deep green and more or less tuberculate, puber- 
“ulent, and scabrous above, at first canescent-tomentose, at length green 
and glabrate beneath, 8 to 24 cm. long, a third as broad, passing without 
sharp demarcation into a short more or less winged petiole: peduncles 
axillary, 4 to 7 cm. long, simple or few-branched ; involucral scales 
oblong, acutish, canescent-tomentose on the outer surface: rays about 
10, from 1.2 to 1.5 em. long: pales truncate, with spinescent mucro. — 
Bot. Gaz. xx. 49. — Guatemala, on the Rio Samala, Depart. Retalhulen, 
altitude 500 m., J. Donnell Smith, no. 2858; also recently found in 
Zacatecas, Mexico, near Monte Escobedo, Rose, no. 2657, an interesting 
extension of range. 
+ + Leaves sinuately and palmately 5(-7)-lobed, lobes acuminate; petioles auricled 
near the summit, otherwise wingless. 
# 13. M. urerscrronia, Benth. Leaves large, broadly cordate, 2 to 
3 dm. broad, orbicular or reniform in general contour, sinuate-lobed 
nearly to the middle or sometimes much more deeply palmatifid; petioles 
enlarged and at first woolly toward the connate bases, bearing near the 
Summit two oblong auricles: heads numerous in a corymb: ligules 8 to _ 
10, 1 em. long, white with roseate tinge: pales in fruit 1 cm. long, broad, 
emarginate, shortly mucronate. — Benth. acc. to Sch. Bip. in Koch, 
Wochenschr. vii. 407; Hemsl. 1. c. 165; J. Donnell Smith, Enum. Pl. 
Guat. pt. 4, 85; Klatt, Bull. Soc. Bot. Belg. xxxi. pt. 1, 201. Mon- 
tagnea hibiscifolia, Benth. in Oerst. Vidensk. Meddel. 1852, p. 89. — 
Nicar agua, Segovia, Oersted, no. 235; Costa Rica, Volcan de Barba, 
Oersted, no. 134, thickets on the banks of the Rio Torres, Tonduz, no. 
8478b; Guatemala, Depart. Santa Rosa, altitude 600-1,500 m., Heyde 
& Luz, nos. 3805, 6155, of Mr. J. Donnell Smith’s sets; Chiapas, near 
Yajalon, EZ. W. Nelson, no. 3417. : 
+ + + Branchlets thick, more or less 4-angled: leaves large, suborbicular or po- 
lygonal, about as broad (9 to 17 cm.) as long; petioles not winged. : 
++ Leaves puberulent but not scabrous above. 
7 14. M. quapraneutaris, Sch. Bip. 1. ¢. Glabrescent shrub: leaves 
large (1.5 dm. long, 1.7 dm. broad), thin, rounded throughout or obtusely 
1~2-angled on either side, obtuse or broadly cordate and sometimes 
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