A flora of Manila - Rainforestation

268
A FLORA OF MANILA
1. T. CISTOIDES L.
A perennial, prostrate or spreading, more or less pubescent plant with
elongated stems up to 1 m in length. Leaves 4 to 6 cm long; leaflets
about 6 pairs, oblong or oblong-lanceolate, apiculate, 0.7 to 1.5 cm long,
gray-pubescent beneath. Peduncles 2 to 4 cm long. Flowers yellow,
about 3 cm in diameter. Fruits subglobose, about 1 cm in diameter, hairy,
each coccus with about 2 stout sharp spines.
Abundant about the Paranaque church, fl. most of the year; known from
several towns in Luzon, local and certainly an introduced plant in the Phil-
ippines. Tropics generally.
69. RUTACEAE (Orange or Lucban Family)
Trees or shrubs, sometimes climbing, often spiny, the leaves with numerous
or few, pellucid, oil-glands. Leaves alternate or opposite, simple or
compound. Flowers regular, perfect, axillary or terminal, solitary, or in
fascicles, racemes, cymes, or panicles. Calyx 4- or 5-toothed. Petals 4 or
5 or more, valvate or imbricate, free. Stamens 4 to 10, or in some genera
up to 60, hypogynous, the filaments free or connate into a tube, inserted
around the disk. Ovary of 4 or 5, free or connate carpels, or simple and
many-celled; styles free or vaiiously united; ovules 1 or 2 to many in each
cell. Fruit a fleshy berry or drupe, or capsular, or of 1 to 4 capsule-
like cocci.
Genera 121, species more than 700, in most tropical and many temperate
countries, 18 genera and about 50 species in the Philippines.
1. Ovules 1 or 2 in each cell.
2. Unarmed shrubs.
3. Style very short, persistent 1. Ghjcosmis
3. Style jointed on the ovary, deciduous; shrubs or trees with pinnate
leaves.
4. Filaments linear-subulate 2. Murraya
4. Filaments dilated below 3. Clausena
2. Spiny shrubs with 3-foliolate leaves 4. Triphasia
1. Ovules 4 to many in each cell.
2. Leaves 1-foliolate .'
5. Citrus
2. Leaves 3-foliolate 6. Aegle
1. GLYCOSMIS Correa
Spineless shrubs or trees, vdth 1- to 5-foliolate leaves, the leaflets entire,
alternate. Flowers small, in short, narrow, axillary panicles. Calyx 4- or
5-toothed, the segments imbricate. Petals 4 or 5, imbricate. Stamens 8
to 10, free, the filaments dilated below. Ovary 2- to 5-celled, the style very
short, not jointed, persistent. Ovules 1 in each cell. Fruit a globose, fleshy,
1 to 3-seeded berry. (From the Greek "sweet.")
Species 5 or more, tropical Asia to Australia, the following exceeding
variable one, and perhaps one other in the Philippines.
1. Glycosmis cochinchinensis (Lour.) Pierre {G. pentaphylla Correa).
Guing-guing (Tag.).
A shrub 1 to 5 m high, the leaves usually with from 3 to 5 pinnately
arranged leaflets, sometimes reduced to one or two, all often found on the
same plant. Leaflets oblong-lanceolate to lanceolate, acuminate, 5 to 18