PavXownia SCROPHULARIACEAE-LENTIBULARIACEAE Trapella 



" Yamazaki describes a new species: Petitmenginia matsumurae in J. J. B. 25:214. 1950, from 

 Nanking, Kiangsu. The genus is otherwise considered monotypic and of Indo-China. I cannot 

 make out the identity of this species. Perhaps it is Melasma arvense but the latter species 

 has not been recorded in our area."— Hui-lin Li. 



154. PEDALIACEAE Sesame Family Wff (Hu Ma K'o) 



Herbs, or rarely shrubs, with opposite Ivs.; or the upper alternate; the foliage 

 covered with slime-secreting glands: fls. 5-merous, perfect, irregular, axillary and in 

 terminal racemes or solitary; corolla somewhat inflated at the base, 2-lipped; stamens 

 4, in 2 prs., included: fr. a 2-A-celled capsule or nut. 16 genera with 50 species, in 

 tropical and subtropical Africa, Asia, Australia and the East Indies; 2 genera and 2 

 species in China. 



Key to the Genera 



Stout erect terrestrial herbs : f r. a dehiscent capsule 1 . Sesamum 



Weak-stemmed aquatic herbs: fr. indehiscent, winged, bearing 3 curved 



hooks at the top 2 . Trapella 



1. Sesamum Linn. i$J#il (Hu Ma Shu) 



Erect (ours) or prostrate terrestrial herbs with large irregular white or pink 

 axillary fls.; ovary superior: fr. an abundance of 2-celled dehiscent capsides packed 

 with many flat seeds. 20 species, in the eastern tropics; one cultivated in China. 

 (The Greek form of an Arabic name.) 



1. Sesamum indicum Linn. (S. orientate Linn.) Sesame ^H (Chih Ma; Prickly Hemp) 

 (B.M.908). Erect herbs, to lm.; fls. rose, white, VII-VIII; fr. IX-X. Tropical 

 countries; locally in An., Hun., Hup., Ki., Ku. Cultivated, seed, occasionally 

 escaped or naturalized. Fig. 339. 



Linnaeus described Sesamum indicum and -S. orientate on p. 634 of Species Plantarum 

 (1753), S. orientate appearing first. S. orientate Linn, is given by De Candolle as a synonym for 

 his var. subindivisum under S. indicum Linn. (DC. P. 9:250.1845). 



2. Trapella Oliv. ^MM (Ch'a Ling Shu) 



Weak-stemmed aquatic herb with solitary axillary fls.; ovary inferior: fr. indehiscent , 

 winged, one-seeded, bearing 3 recurved hooks at the top. One species, in China. (The 

 fruit resembles that of Trapa.) 



1. Trapella sinensis Oliv. ^H (Ch'a Ling; Tea Water-caltrop) (Hu P. 59). Aquatic 

 herbaceous vine; fls. VII; fr. IX. China, Japan; locally in Hup., Ku. Ponds, 

 lakes. 



155. LENTIBULARIACEAE Bladderwort Family g§^ (Li Tsao K'o 



Small annuals growing in water or wet places, with whorled persistent pinnate Ivs. 

 divided into filiform segments which bear small bladders at their bases, and regarded 

 as carnivorous by means of the bladders: or in terrestrial forms alternate and 

 disappearing before flg.: fls. perfect, irregular, few and scapose, yellow, purplish or 

 nearly white; calyx and corolla 2-lipped; stamens 2, inserted on the corolla; ovary 

 superior: fr. a small 2-A-valved capsule. 5 genera with 250 species, in all parts of 

 the world; one genus and 10 species in China. 



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