A flora of Manila - Rainforestation

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A FLORA OF MANILA
2 to 5 cm long, base narrowed, decurrent along the petiole. Flowering
stems one to several, erect, usually leafless, the flowers scattered, alternate,
the bracts lanceolate, acuminate, 1.5 to 2 mm long. Calyx green, about
7 mm long, cleft half way to the base into 5 oblong lobes. Corolla palepurple,
about 11 mm long, the upper lip ovate, acuminate, the lower one
about 8 mm wide, blotched with yellow above the throat, the lateral lobes
broader than the middle one. Capsule about 3 mm long, the calyx-lobes
spreading in fruit.
On wet cliffs, Guadalupe, fl, Oct.-Dec, rare; widely distributed in the
Philippines, but local. India to Japan southward to Java.
8. VANDELLIA Linnaeus
Usually small, annual, erect or spreading, glabrous or pubescent herbs.
Leaves opposite, penninerved, entire or toothed. Flowers axillary or racemose.
Sepals 5, free or united into a campanulate calyx. Corolla-tube
cylindric, the upper lip erect, broad, concave, notched or bifid, the lower
broader, spreading, 3-lobed. Stamens 4, all perfect, the 2 anterior ones
with arched filaments which are appendaged at or near the base; anthers
touching or cohering in pairs under the upper lip, the cells divaricate.
Stigma 2-lamellate. Capsule septicidal, the valves separating from the
placenta-bearing septum. (In honor of D. Vandelli, a Portuguese botanist.)
Species about 26, chiefly in tropical Asia, about 6 in the Philippines.
1. Capsule about as long as the calyx or shorter.
2. Calyx cleft nearly to the base into 5 lobes.
3. Corolla about 10 mm long 1. V. pusilla
3. Corolla about 5 mm long 2. V. viscosa
2. Calyx 5-toothed, the teeth or lobes not reaching to the middle.
3. V. Crustacea
1. Capsule much longer than the calyx 4. V. cordifolia
1. V. pusilla (Willd.) Merr. {V. scabra Benth.).
A slender, erect or ascending, simple or somewhat branched annual hei'b,
5 to 12 cm high, with scattered white hairs. Leaves sessile, ovate, acute or
obtuse, entire or obscurely toothed, 8 to 14 mm long. Pedicels axillary and
terminal, elongated. Calyx green, 3.5 mm long, cleft nearly to the base
into 5, equal, lanceolate sepals. Corolla 10 to 11 mm long, pale-purple,
the lower lip with a yellow spot at the base. Capsule about as long as the
calyx.
In open grass lands, old rice fields, etc. fl. all the year; widely distributed
in the Philippines. Tropical Asia and Malaya, Madagascar, and South
Africa.
2. V. viscosa (Willd.) Merr. (V. hirsuta Ham.).
A small, erect or ascending, somewhat succulent, annual herb, S to 15
cm high, more or less clothed with spreading hairs. Lower leaves shortly
petioled, oblong-ovate to elliptic-ovate, obtuse, distantly and shallowly
toothed, 3.5 to 6 cm long, the upper ones similar, but sessile and somewhat
smaller. Racemes simple or slightly branched, the pedicels 5 to 9 mm long.
Calyx green, about 3 mm long, cleft nearly to the base into 5, lanceolate,
acuminate lobes. Corolla 5 to 6 mm long, pink or white, tinged with
purple. Capsules ovoid, about 3 mm long. (Fl. Filip. pi. 368.)
On wet cliffs, Guadalupe, rare, fl. Oct.-Dec; not common in the Phil-
ippines. India to China southward to Borneo and Java.