188 A FLORA OF MANILA 
em long, dense, cylindric, about 1 cm in diameter, each bract subtending 
several flowers. Flowers white, 4 mm long. 
In open wet or damp places, occasional, fl. most of the year; throughout 
the Philippines. Tropical Asia and Africa, Malaya. 
2. ANTIGONON Endlicher 
Climbing, somewhat woody vines from thickened roots, with alternate, 
cordate leaves and somewhat stem-clasping petioles. Panicles axillary or 
terminal, the rachis extended as a tendril. Flowers perfect, white to deep- 
pink. Perianth 5-parted, persistent and somewhat enlarged in fruit, the 
outer 3 lobes larger than the inner 2. Stamens 7 or 8, filaments connate 
at the base. Ovary 3-angled. Nut 3-angled, smooth, enclosed by the 
persistent calyx-lobes. 
Species 3 or 4 in Mexico and Central America, 1 now widely cultivated in 
tropical countries, introduced and extensively cultivated here. 
*1, A. LEPropuS Hook & Arn. Cadena de amor (Sp.). 
A scandent, somewhat woody, perennial vine from thickened tuberous 
roots, reaching a height of 10 m. Leaves ovate to oblong-ovate, 6 to 
14 cm long, prominently reticulate, base deeply cordate, the lobes usually 
overlapping. Inflorescence terminal and in the upper axils, of paniculate 
racemes, the rachises of the racemes produced as tendrils. Flowers nu- 
merous, pale- to deep-pink, sometimes white, about 1 em long, fascicled, 
secund, the perianth lobes somewhat enlarged, persistent, loosely surround- 
ing the ovoid 1 cm long fruit. (FI. Filip. pl. 462, A. cordatum.) 
Very commonly cultivated for ornamental purposes, fi. all the year. A 
native of Mexico, now cultivated in many tropical countries. 
3. MUEHELENBECKIA Meissner 
Erect shrubs with flattered striate branches and much-reduced leaves 
(in our species), the sheaths reduced to transverse lines, making the branches 
appear jointed. Flowers small, dioecious or polygamo-dioecious, fascicled 
at the joints. Perianth deeply subequally 5-lobed. Stamens usually 8. 
Ovary 3-angled. Nut obtusely or acutely 3-angled, small, enclosed by the 
perianth. (In honor of H. G. Muehelenbeck, an Alsatian botanist.) 
Species 15, Australia, Polynesia, South America and Mexico, 1 introduced 
in the Philippines. 
1. M. PLATYCLADA Meissn. 
An erect glabrous shrub 1 to 3 m high. Branches green, flattened, 
striate, 5 to 15 mm wide, the joints 5 to 20 mm long, bearing at the nodes 
few, reduced, lanceolate leaves 4 to 20 mm long, or the leaves nearly or 
quite wanting. Flowers whitish, small, about 2 mm long, fascicled, rarely 
solitary, alternating at the nodes. (FI. Filip. pl. 317, Exocarpus ceramica.) 
Occasionally cultivated, fl. all the year. A native of the Solomon Islands, 
now widely distributed in cultivation, introduced here and now naturalized 
in some localities. 
43. CHENOPODIACEAE (GO0OOSEFOOT OR APOSOTIS FAMILY) 
Herbs or shrubs with simple alternate leaves. Flowers perfect or 
unisexual, small, usually regular. Calyx of 8 to 5 free or connate sepals. 
Petals none. Stamens usually 5, opposite the sepals, perigynous or hypogy- 
nous. Ovary superior, 1-celled, 1-ovuled; stigmas 2 to 4. Fruit usually 
a utricle enclosed by the calyx. 
