EOBINSON AND GREENMAN. — GENUS MONTANOA. 613 



* * * Involucral bracts smaller and narrower, linear-oblong to linear. 

 •I- Leaves oblong-lanceolate, subsessile or attenuate at the base to a winged or rela- 

 tively sliort naked petiole : heads rather few, in leafy cymes or loose panicle. 



12. j\r. SAMALENSis, 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 cm. long: pales truncate, with spinesceut 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 IMoute Escobedo, Rose, no. 2657, an interesting 

 extension of range. 



1- -1- Leaves sinuately and palmately 5(-7)-lobed, lobes acuminate; petioles aiiricled 

 near the summit, otherwise wingless. 



13. M. HiBisciFOLiA, 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 cm. long, white with roseate tinge : pales in fruit 1 cm. long, broad, 

 emarginate, shortly mucronate. — Benth. ace. to Sch. Bip. in Koch, 

 Wochenschr. vii. 407; Hemsl. 1. c. 165; J. Donnell Smith, Enum. PI. 

 Guat. pt. 4, 85; Klatt, Bull. Soc. Bot. Belg. xxxi. pt. 1, 201. Mon- 

 tagncea hibiscifoUa, Benth. in Oerst. Vidensk. Meddel. 1852, p. 89. — 

 Nicaragua, 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 

 & Lux, nos. 3805, 6155, of Mr. J. Donnell Smith's sets ; Chiapas, near 

 Yajalon, E. W. Nelson, no. 3417. 



H- -1- -t- 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. 



14. M. QUADRANGULARis, Sch. Bip. 1. c. 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 



VOL. XXXIV. — 33 



