ONAGRARIEZ. 463 
nuti, tubo duplo breviores ; petala rotundata, calycis lobis breviora; stigma capitatum, vix 
exsertum. Capsula vix pollicaris, valvis dorso distincte carinatis. 
GUATEMALA, Rio Guacalate at 4950 feet (Salvin), without locality (Savage). Hb. Kew. 
et Paris. 
Apparently a very distinct species, easily distinguished by the distinctly horned tips of 
the calyx-lobes, and the shorter capsule, with prominently ridged valves. 
3. Hauya elegans, Mog. et Sess. (char. ‘emend.); Hemsley, Diag. Pl. Noy. 
pars 1, p. 13. (Tab. X XIX. fig. 1.) 
Velutina, foliis lanceolatis ovatis vel fere rotundatis subtus cano-tomentosis vel velutinis, floribus 
ultra 4-pollicaribus, calycis lobis tubo multo brevioribus, capsulis ad sesquipollicaribus, valvis 
dorso planis. 
Arbor vel frutex, ramis puberulis vel junioribus velutinis. Folia alterna, petiolata, lanceolata, ovata 
vel fere rotundata, integra, acute acuminata, subtus cano-velutina, supra tomentosa, demum 
fere glabra, lamina 13-2} poll. longa, petiolo 3-8 lin. longo. Flores subvelutini, maximi usque 
ad 5-pollicares ; calycis lobi reflexi, tubo fere dimidio breviores ; petala ovato-rotundata, calycis 
lobis zequilonga. Capsula sesquipoll. longa, valvis dorso planis—DC. Mém. Onagr. p.2,t.1; 
Prodr. iii. p. 36. ° 
- Sourn Mexico, Zimapan (Coulter, 172). Hb. Kew. 
This differs mainly from our H. barcene in having much larger flowers, with relatively 
longer petals and shorter calyx-lobes, and in the dense velvety tomentum. The 
original figure of H. elegans (De Candolle, Mém. Onagr. t. 1) agrees sufficiently with 
the species as here limited. 
EXPLANATION OF TAB. XXIX. 
All the species shown natural size. 
7. ZAUSCHNERIA. 
Zauschneria, Presi, Relig. Henk. ii. p. 28; Benth. et Hook. Gen. Plant. i. p. 788. 
Restricted to one dwarf shrubby species. . 
1. Zauschneria californica, Presl, Reliq. Henk. ii. p. 28, t. 52; Bot. Mag. 
t. 4993. 
Zauschneria mexicana, Presl. 
Catirornia ; New Mexico.—Norts Mexico, Sonora (Thurber). Hb. Kew. 
_ 8. SEMEIANDRA. 
Semeiandra, Hook. et Arn. Bot. Beech. Voy. p. 291; Benth. et Hook. Gen. Plant. i. p. 791. 
One shrubby species, restricted to Mexico. 
1. Semeiandra grandiflora, Hook. et Arn. Bot. Beech. Voy. p. 291, t.59; Bot. 
Mag. t. 4727. 
