CONVOLVULACEAE 381 



cm long. Flowers lilac-purple, about 1 cm in diameter, 10 to 12 or more 

 m each umbel, the corolla rotate, the lobes broadly triangular-ovate, glabrous 

 outside, inside densely papillose-pubescent. Capsules about 12 cm long. 



In dry ravines opposite Guadalupe, rare, sometimes cultivated, fl. June; 

 known only from Luzon and of every local occurrence. 



10. DISCHIDIA R. Brown 



Slender, usually epiphytic, twining or pendulous vines, climbing and 

 rooting on trees. Leaves usually opposite, sometimes all flat, sometimes 

 some o| them converted into pitchers, or in some species all leaves convex and 

 sessile, closely appressed to the surface on which the plant grows. Flowers 

 small, white, yellow, or red, in axillary racemes, umbels, cymes, or fascicles, 

 the peduncles usually thickened and marked with numerous scars. Calyx 

 6-partite, glandular within. Corolla campanulate, tubular, or urceolate, 

 usually contracted at the mouth, the lobes valvate. Corona of 5 membrana- 

 ceous processes adnate to the back of the staminal-column, erect, entire, 

 notched, or bifid at the tips, or with incurved or recurved arms. Filaments 

 connate into a very short tube; anthers with membranaceous appendages; 

 pollen-masses 1 in each cell. Ovary of 2 carpels. Fruit of 1 or 2 small, 

 slender, acuminate follicles; seeds comose. (Greek "two" and "cleft" in 

 allusion to the cleft corona-segments.) 



Species 60 or more, India to N^w Guinea and Australia, about 15 in the 

 Philippines. 



1. D. pectenoides Pearson. Dapo-boho (Tag.). 



An herbaceous^ epiphjrtic, glabrous vine usually growing on dead bamboo, 

 the branches slender, pendulous, often twining. Leaves of two kinds, oppo- 

 site, normal ones elliptic-ovate to lanceolate, acuminate, thick, fleshy, 1.5 to 

 2.5 cm long, one of some pairs hollow inside, inflated, 4 to 6 cm long, 4 to 6 

 cm wide, usually about 2 cm thick, the interior more or less filled with root- 

 lets from the leaf -axil and with a much smaller interior ascidium usually the 

 domicil of a colony of sma^Il black ants. Inflorescence axillary, solitary, um- 

 bellate, the peduncle 1 to '2 cm long. Flowers 3 to 8 in each umbel, the 

 calyx small, green, thfe corollp. cylindric, red, apex narrowed, about 8 mm 

 long. Follicles slender, 5 to 7 cm long. 



Not infrequently brought in from the neighboring provinces and culti- 

 vated in Manila; very curious' on account of its symbiosis with ants, fl. most' 

 of the year. Kno'wn only from Luzon. 



118. CONVOLVULACEAE (MORNING Glory or 

 Camote Family) 



Slender, spreading or prostrate herbs, or twining herbaceous or woody 

 vines, sometimes with milky sap, with alternate, simple, entire or lobed, 

 exstipulate leaves. Flowers axillary, solitary or -cymose, regular, perfect, 

 often large and showy, bracteate. Sepals 5, imbricate, usually persistent, 

 often accrescent. Corolla campanulate, salver-shaped, or urceolate, rarely 

 subrotate, the limb with 5 short or long lobes, often plicate in bud. Sta- 

 mens 5, adnate to the corolla-tube. Ovary superior, of 2 usually connate 

 carpels, often surrounded by an annular or lobed disk; ovules 2 in each 

 carpel; style 1, rarely 2. Fruit an indehiscent, often dry berry, or a 

 2- to 4-valved, circumscissile, or irregularly dehiscent capsule. Seeds 2 

 or 4. 



