Download A FLORA OP MANILA nearly white. Pod 5 to 10 cm long, flat, 6

246
nearly white.
pi.
A FLORA OP MANILA
Pod 5 to 10 cm long, flat, 6- to 10-seeded.
(PI. Pilip.
SOI.)
Quite common in thickets, often cultivated; throughout the Philippines,
but certainly introduced. Cosmopolitan in the tropics.
32. PAROSELA Cavanilles
Erect, branched, glandular-punctate herbs with alternate, odd-pinnate
leaves, the leaflets small, numerous. Flowers blue or purplish, in dense,
terminal, peduncled, or subsessile, head-like spikes. Calyx-teeth subequal.
Standard broad, clawed, base of the limb cordate or auricled; wings "and
keel usually longer than the standard, their claws usually adnate to the
staminal tube. Stamens 10 or 9, monadelphous. Pods membranaceous,
included in the calyx, usually 1-seeded and indéhiscent. (Anagram of
Psoralea, an allied genus.)
Species 100 or more mostly in North America, few in South America,
1 Mexican species introduced and thoroughly naturalized here.
1. P. GLANDULOSA (Blanco) Merr. (Psoralia nigra Mart. & Gal.). Dura
(Tag.).
An erect, branched, nearly or quite glabrous herb 30 to 60 cm high, the
stems reddish or purplish. Leaves about 3 cm long; leaflets linear to
narrowly oblong, obtuse, 4 to 10 mm long, prominently glandular-punctate
beneath. Spikes dense, capitate ovoid to oblong, 1 to 2 cm long. Flowers
very numerous, each substended by a lanceolate, long-acuminate, pubescent,
glandular, 6 to 7 mm long bract. Calyx greenish, hirsute. Corolla, includ­
ing the slender white tube, about 7 mm long, the limb blue, exserted. Pod
small, pubescent.
Very common in open dry lands, San Pedro Macati, etc., fl. Sept.-Feb.;
locally common in Luzon. A native of Mexico thoroughly naturalized here,
but not reported from any other part of the Orient.
33. P T E R O C A R P U S Linnaeus
Trees with odd-pinnate leaves, the leaflets ovate, entire, alternate.
Flowers yellow, in axillary panicled racemes, the pedicels jointed at the
apex. Calyx turbinate, curved in bud, the teeth short. Petals exserted,
long-clawed, the standard and wings crisped. Staminal sheath slit above
and below or only above, the upper stamen often nearly or quite free.
Ovary 2-ovuled; style incurved. Pod orbicular, usually 1-seeded, indéhis­
cent, surrounded by a broad wing. (Greek "wing" and "fruit.")
Species 15 or more, cosmopolitan in the tropics, 3 in the Philippines.
Pods smooth
Pods covered with slender spreading spines
1. P. indicus
2. P. echinatus
1. P. indicus Willd. Narra ( T a g . ) ; Naga (Vis.).
A tree reaching a height of 25 m or more. Leaves 15 to 30 cm long;
leaflets 7 to 11, ovate to oblong-ovate, blunt-acuminate, 5 to 10 cm long,
alternate, shining. Panicles axillary, branched. Flowers numerous, yellow,
about 1.5 cm long. Young pods pubescent, glabrous or nearly so when
mature, orbicular to obovate, including the wing 4 to 5.5 cm long, the wing
1 to 1.5 cm wide, more or less reticulate and undulate, very shortly beaked.
(Fl. Filip pi. 205.)
A single tree in the old Botanical Garden, fl. Apr .-May; widely distributed
in the Philippines. India to China, Malaya, and Polynesia.