“SMITH AND ROSE—THE HAUYEAE AND GONGYLOCARPEAE. 291 
4, Hauya rusbyi Donn. Smith & Rose, sp. nov. Fieure 48. 
Small tree; young branches greenish, pubescent with soft, spreading hairs; leaves 
broadly oblong-ovate, 8 to 12 cm. long, sometimes abruptly acuminate, rounded at the 
base, somewhat pubescent above, paler beneath and with dense soft pubescence; petiole 
12 to 20 mm. long; peduncle 8 mm. long; flowers 7 to 8 cm. long; calyx tube 3 cm. long, 
the segments narrow, 4 to 5 cm. long, appendaged at the tip, very pubescent without, 
within greenish above, reflexed after 
flowering and purplish below; petals 
not seen; style purple; capsule 3.5 to 
4 cm. long, plane on the back; seeds 
8 mm. long. 
Typeinthe United States National 
Herbarium, no. 574646, collected on 
Liméa Mountain, Guerrero, Mexico, 
altitude 1,350 meters, July 28, 1910, 
by H. H. Rusby (no. 157). Also 
. collected in the mountains near Iguala, 
Mexico, October 24, 1909, by C. G. 
Pringle (no. 9258). 
Hauya rusbyi is probably nearest 
H. barcenae, differing from it in the 
shape of the leaves, in its somewhat 
shorter petioles, in having the calyx 
tube shorter than the segments and 
the segments appendaged, and in its 
somewhat shorter capsule. 
5. Hauya elegans DC. Prodr. 3: 36. 
SS 
1828. 
Shrub or tree; young branches vel- 
vety-pubescent; leaves lanceolate to 
ovate, 27 to 62 cm. long, rounded at 
the base, acuminate, tomentose above, 
velvety-pubescent beneath; flowers 
sessile, 12.5 cm. long; calyx tube longer 
than the calyx segments, these not 
appendaged; petals nearly orbicular, 
rose-colored; capsule 3.7 cm. long, the 
valves plane on the back. 
TYPE LocaLity: Mexico. 
The taxonomic history of this, the 
type species of the genus, has already 
been given with that of the genus. There is only to add that in 1880 Mr. Hemsley 
referred here Coulter’s no. 172 from Zimapan, Mexico. 
6. Hauya cornuta Hemsl. Diag. Pl. Mex. 1: 13. 1878. Ficure 49, 
Shrub or small tree; young branches pubescent; leaves rather small for the genus, 
oblong-lanceolate to elliptical, 5 to 7.5 cm. long, short-acuminate, puberulent above, 
canescent-tomentose beneath; calyx tube 3 cm. long, puberulent, the segments about 
half the length of the tube; capsule 22 mm. long, the valves with a short ridge on the 
back. 
TYPE LocALITy: Volc4n de Fuego, Guatemala. 
Only the type specimen has been seen, which was collected in Guatemala, August 
6, 1873, by Osbert Salvin. 
The material was lent us by the director of the Kew Gardens. 
Fia. 48.— Hauya rusbyi. Rusby’s 157. Natural size. 
