344 
CXLVII. LILIACEJL 
[Smilax. 
Excluded Species 
S. singaporensis A. DC. Mon. Smilax, 177. “ S. calophylla 
Wall. Cat. 5131 in Herb. Rich, only ” is indeterminable. It 
cannot be any part of Wall. Cat. 5131, which is all calophylla, 
and it is evident that the label was wrong and the plant is 
not from Singapore. It is possibly 5. Helferi from somewhere 
else. 
15. HETEROSMILAX, Kunth. 
Climbers resembling Smilax with tubular perianth, 3- to 6-fid. 
Stamens 3 connate. Fruit a 2-seeded berry. . Species 5. Indo- 
Malaya, China. 
(1) H. indica A. DC. Mon. Smilax, 43; Ridl. Mat. ii. 108. 
Stem slender unarmed. Leaves ovate-lanceolate, rather thin, 
base round, 3 to 8 in. long, 1 to 3-5 in. wide; nerves 5; petioles 
1 to 1*5 in. long. Peduncles solitary, 2 in. long; umbel 1 in. 
through. Stamens connate half-way. Fruit globose, *5 in. through. 
Seeds 2, hemispheric. Hah. Singapore, thickets near the sea at 
Tanjong Katong (Hullett). Once found only, and now quite 
disappeared. Dislrib. India. 
Order CXLVIII. PONTEDERIACE^E. 
Aquatic plants with a short rootstock, and erect or floating leaves. 
Flowers in spikes or racemes from the axils of upper leaves, 
bisexual, blue, pink or white. Sepals 3 and petals 3, free fugacious. 
Stamens 6, one usually the longer. Ovary free, 3-celled or i-celled 
with 3 parietal placentas. Style slender. Capsule membranous. 
Seeds minute, ribbed. About 36 species, tropics of both hemi¬ 
spheres. 
1. MONOCHORIA, Presl. 
Leaves radical and solitary at the top of the stem or branches 
petioled ovate. Perianth widely expanded or campanulate blue 
fugacious. Stamens 6, five steriie, one fertile. Species 5 or 6, 
tropics of Old World. 
Leaves hastate or cordate; flowers long-pedicelled 
fascicled light blue .(i) M. hasteefolia 
Leaves narrow hastate; flowers racemose . . (2) M. data 
Leaves ovate or linear; flowers short-pedicelled 
dark blue .. . (3) M. vaginalis 
(1) M. hastaefolia Presl. Rel. Haenk. ii. 128; Hook. fil. F.B.I. 
vi. 362 ; Ridl. Mat. ii. 109. Pontederia hastata Linn. FI. Zeyl. 129 ; 
Roxb. Corom. PI. ii. t. 63. P. dilatata Andr. Bot. Rep. vii. L 490. 
Rhizome usually short. Leaves 1 to 2 ft. tall, blade hastate or 
deltoid, base cordate or entire, broad, 2 to 6 in. long, 2 to 6 in. wide. 
