168 COMPOSIT. 
‘1. Mirasolia calva, Benth. et Hook. Gen. Pl. ii. p. 368. 
Tithonia calva, Schz. Bip. in Seem. Bot. Voy. ‘Herald,’ p. 305,=subgenus Mirasolia. 
Nortu Mexico, Sierra Madre (Seemann, 2045). Hb. Kew. 
2. Mirasolia diversifolia, Hemsley, n. sp. (Tab. XLVII.) 
Robusta, foliis integris vel lobatis seepe trilobatis, capitulis maximis, pedunculis sursum incrassatis, 
acheniis appresse hirsutis, pappo paleolaceo, paleolis latis fimbrillatis persistentibus. 
Frutex grandis (Bourgeau), ramis crassiusculis, glabris vel glabrescentibus, striatis. Folia alterna, 
petiolata, membranacea, glabra vel puberula, ovata vel fere orbicularia, integra, 3-lobata vel 
5-lobata, usque ad 9 poll. longa et 6 poll. lata, crenata, basi cuneata, acuminata (vel lobata, 
lobis acuminatis). Capitula homochroma, aurantiaca, usque ad 6 poll. diametro, terminalia 
vel lateralia, pedunculis elongatis, nudis, sursum incrassatis, fistulosis ; involucri bractez 2-3- 
seriate, glabre vel leviter puberule, scarioso-coriacex vel interiores membranacew, striate, 
exteriores fere orbiculares, interiores longiores, obovate; receptaculum fere hemisphericum ; 
paleze glabre, striate, complicate, abrupte acuminate, dorso carinate, floribus breviores ; 
ligule latze, neutre ; flores disci numerosissimi; corollz cylindrice, deorsum hirsute ; anther 
basi obtus, inappendiculate. Achenia claviformia, compressa, subtetragona, appresse hirsuta; 
pappus paleolaceus ; paleole szpe 6, ineequales, late, inter se libere, fimbrillate, longiores 
circiter lineam longe, persistentes. 
Sourh Mexico, abundant in the valley of Orizaba, also in the valley of Cordova 
(Bourgeau, 2319, 1562); Guaremata, Duefias (Fraser, Salvin). Hb. Kew. 
This differs from the other species in having an evident chaffy pappus. Though 
described as a shrub, it is probably a gigantic herb. 
EXPLANATION OF TAB. XLVII. 
Fig. 1, portion of a ray-flower; 2, a disk-flower; 8, a pale; 4, an anther; 5, an achene: all 
enlarged. 
3. Mirasolia scaberrima, Benth. et Hook. Gen. Plant. ii. p. 368. 
Tithonia scaberrima, Benth. in Vidensk. Meddel. 1852, p. 91. 
SoutH Mzxico, Zacuapan (Linden, 1158), valley of Cordova (Bourgeau, 1851), Mirador 
(Liebmann, 251), Orizaba (Botteri, 1191); Guaremata, lower part of Volcan de Fuego 
(Salvin & Godman), Volcan de Fuego, at 5300 feet (Salvin); Nicaracua, Segovia 
(Grsted, 141). Hb. Kew. 
. 113. IOSTEPHANE. 
Tostephane, Benth. in Benth. et Hook. Gen. Plant. i. p. 368. 
An exclusively Mexican genus of scapose herbs. 
1. Iostephane heterophylla, Benth. in Benth. et Hook. Gen. Plant. ii. p. 368. 
Coreopsis heterophylla, Cav. Ic. t. 268. 
Echinacea heterophylia, Don in Sweet Brit. Fl. Gard. ser. 2, t. 32. 
Norta Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 470) ; 
Sour Mexico, near San Angelo (Schaffner), valley of Mexico (Bourgeau, 602), Real 
del Monte (Coulter, 374). Hb. Kew. 
