218 BOTANY. 
Mex. Bound. p. 110).—Small tree, six inches in diameter at the base, 20 feet 
high, with many slender branches ; wood resembling willow; leaves 3-6’ 
long, 2-4” wide, slightly faleate, entire, and the older ones somewhat 
sticky. The white or purple flowers 18’ long in a terminal raceme; cap- 
sules linear, 6-8’ long —Camp Goodwin, Arizona (344), where, from its 
appearance and habitat, it is known as Desert Willow. 
ACANTHACEZ. 
CALOPHANES* DECUMBENS, Gray, Syn. FI. 1, 325 (C. oblongifolia, Torr. 
Bot. Mex. Bound. p. 123, not Don)—Procumbent or ascending; herba- 
ceous, except at base; leaves and axillary clusters of flowers secund; stem 
pubescent, upper surfaces of the leaves slightly so, under surfaces almost 
smooth, margins and midribs (below) a little hispid; corolla light blue ?, 
funnel-shaped, tube 7-8” long, border 6” in diameter, lobes ovate, calyx- 
lobes linear, setaceous, equal in length to the tube of the corolla, but shorter 
than the lanceolate bracts; seeds four—Sanoita Valley, Southern Arizona, 
at 5,500 feet altitude (637) 
Ruevuiat Tuserosa, Linn., var. occipenTauis, Gray (Syn. FI. 1, p. 
325).—A pubescent herb, 3° high, branched; leaves oval, somewhat firm, 
slightly hairy, tapering into a margined petiole; margins crenate or some- 
what undulate; terminal panicle naked; flowers blue or purple, 1-2’ long; 
tube 6-8” long, suddenly expanded into a wide throat; lobes roundish; 
stamens and style included; calyx-lobes linear, setaceous pubescent; cap- 
sule somewhat hairy, lanceolate or club-shaped, 8-16-seeded.—Cienega, 
Southern Arizona (560). Probably a good species. 
naked and diverging. Capsule long and linear, terete, resembling that of Catalpa, 2-celled, with the at 
length loose narrow partition contrary to the valves. Seeds o “ea thin, with the wing at each end 
dissected into a woolly or finely bristly tuft. Cotyledons 2-lobed.”—Fl. Cal. 1, p. 587 
* CALOPHANES, Don.—Calyx dee Bia 5-cleft ; — rence eagecorecee _ Coretin- fale straight, nar- 
rowly cylindrical, somewhat dilated above ; limt 2-labiate, the 5 obovate 
lobes somewhat unequal. Stamens 4, ca slightly didynamous, ‘inserted i irs and connate below. 
included; anthers fixed by the back, oblong, the cells nearly parallel, a ‘little mucronate at base. 
Style slender, curved above, hispid; ovules 2 in either cell. Capsule oblong-linear, contracted at the 
solid stipe, somewhat thickened above, 2-4-seeded. Seeds orbicular, flat, borne on acute 
placental processes.—Herbs, with woody bases, erect or procumbent, the leaves entire, opposite or often 
arp = the axils. The blue or pale flowers sub-sessile in the axils, few or many in a cluster, rarely 
sho ose.—BENTH. & Hook. I have kept this genus apart from Ruellia solely in deference to 
partici and Hooker. 
RUELLIA, Line Sik © iho except that the cells of the capsule have each more than two 
seeds, and the anthers are pointless belo 
