STANDLEY TREES AND SHRUBS OF MEXICO 1533 



Oaxaca; type from Cumbre de Estepe. 



Stem hirsute-pilose, glabrescent; leaf blades rhombic-ovate, 6 to 12.5 cm. 

 long, 3.5 to 7.5 cm. wide, sinuately 3 or 5-lobed, decurrent on the upper part of 

 the petiole, rough above, green and pubescent beneath; heads 1 to 5 at ends of 

 branches; phyllaries acute to rounded, 3.5 to 5 mm. wide; pales elongate, at- 

 tenuate, straightish, pungent-tipped. 



13. Montanoa samalensis Coult. Bot. Gaz. 20: 49. 1895. 

 Zacatecas. Guatemala; type from Rio Samala, Guatemala. 



Branches sordid-tomentose, glabrescent; leaves 8 to 24 cm. long, a third as 

 wide, obtuse or acuminate, crenate, green and scabrous above, beneath at first 

 canescent-tomentose, at length glabrate and green; heads solitary or few; pales 

 truncate, spinescent-mucronate. 



14. Montanoa tehuacana Robinson, Proc. Amer. Acad. 47: 209. 1911. 

 Puebla; type from Tehuacd,n. 



Shrub, up to 5 meters high; leaf blades lance-ovate to rhombic-ovate, 4.5 to 

 20 cm. long, 2.5 to 16 cm. wide, cuneately decurrent on the petiole (sometimes 

 broadly so), often sinuately 3 or 5-lobed, green and scabrous above, canescent- 

 tomentulose beneath; heads rather few or numerous; pales rather abruptly 

 contracted into long, spreading, spinescent tips. 



15. Montanoa hibiscifolia (Benth.) Schultz Bip.; C. Koch, Wochenschr. 

 Gartn. 7: 407. 1864. 



Montagnaea hibiscifolia Benth. in Oerst. Nat. For. Kjobenhavn Vid. Medd. 

 1852: 89. 1852. 



Eriocoma hibiscifolia Kuntze, Rev. Gen. PI. 1: 336. 1891. 

 • Chiapas. Guatemala to Costa Rica; type from Segovia, Nicaragua. 



Shrub, up to 6.5 meters high; branches glabrescent; petioles long, often 

 biauriculate at apex; leaves sinuately several-lobed usually to middle or deeper, 

 canescent-tomentulose to merely puberulous beneath; heads numerous, cymose- 

 panicled, 2 to 3.5 cm. wide; rays white "with roseate tinge"; pales in fruit short- 

 mucronate from a subtruncate or emarginate apex. "Telecate bianco" (Nica- 

 ragua); "palo de marimba" (El Salvador). 



16. Montanoa hexagona Robins. & Greenm. Proc. Amer. Acad. 34: 514. 1899. 

 Known only from the type locality, Chiapas. 



Large tree; leaves scabrous above, unappendaged at base; petioles wingless, 

 7 cm. long; heads numerous, rather large; rays about 2 cm. long. (Description 

 compiled.) 



17. Montanoa frutescens (Mairet) Hemsl. Biol. Centr. Amer. Bot. 2: 165. 

 1881. 



Montagnaea frutescens Mairet; DC. Prodr. 5: 565. 1836. 



Priestleya squarrosa Moc. & Sesse; DC. Prodr. 5: 565. 1836, as synonym. 



Eriocoma frutescens Alaman; DC. Prodr. 5: 565. 1836, as synonym. • 



Aldama montanoa Schultz Bip.; C. Koch, Wochenschr. Gartn. 7: 406. 1864. 



Michoacdn to Oaxaca; type from Mexico, without definite locality. 



Shrub, up to 4 meters high; stem glabrous or early glabrate; leaf blades ovate 

 to deltoid- or rhombic-ovate, 6 to 15.5 cm. long, 2.5 to 11 cm. wide, rarely sinu- 

 ately 3-lobed, acuminate, green on both sides, harsh above; heads few or numer- 

 ous, up to 4.5 cm. wide. 



18. Montanoa arborescens (DC.) Schultz Bip; C. Koch, Wochenschr. Gartn. 

 7: 406. 1864. 



Montagnaea arborescens DC. Prodr. 5: 565. 1836. 

 Eriocoma arborescens Alamdn; DC. Prodr. 5: 566. 1836, as synonym. 

 Montanoa floribunda Cerv.; DC. Prodr. 5: 566. 1836, as synonym. 

 Mexico, without definite locality (type); "Cordillera Guchilaqua." 



