Tropaeolum TROPAEOLACEAE-RUTACEAE Tribulus 



1. Tropaeolum majus Linn. Garden Nasturtium &M~ik (Chin Lien Hua: Golden- 

 lotus Flower) (B.M. 602). Twining herb; fls. orange-yellow, V. Introduced from 

 South America; locally in Ku. Planted, ornamental. Fig. 196. 



85. LINACEAE Flax Family M^£4 (Ya Ma K'o) 

 Erect herbs or shrubs with simple usually alternate lvs.\ fls. perfect, regular, 

 5-merous; filaments united at the base; carpels 2-5, or twice as many by the growth 

 false septa; style free: fr. a capsule or drupe. About 14 genera with 150 species, 

 widely distributed: 3 genera and 9 species in China. 



1. Linum Linn. Flax SI^K (Ya Ma Shu) 



Erect herbs with tough cortex and narrow sessile lvs.: fls. red, yellow, blue or 

 white; styles 5: fr. a capsule. Nearly 100 species, in temperate and warm regions; 

 4-5 in China. (The Latin name). 



Key to the Species 



Fls. yellow 1. L. flaimm 



Fls. blue or white 2. L. perenne 



1. Linum flavum Linn. (B.M. 603). Perennial, to 0.5 m.; fls. yellow; lvs. spatulate. 

 Introduced from Europe; locally in Ku. Planted, ornamental. 



2. Linum perenne Linn. MM (Ya Ma) (B.M. 604). Perennial, to 0.7 m.; fls. blue or 

 white; lvs. linear. Introduced from Europe; locally in Ku. Planted, ornamental. 



Linum stellarioides Planch, is found in northern China, and may extend southward into 

 our area. Fig. 197. 



86. ZYGOPHYLLACEAE Caltrop Family W^P< (Chi Li K'o) 



Herbs, shrubs or trees with usually opposite stipulate undotted lvs.: fls. perfect, 

 regular, obdiplostemonous; stamens free; anthers basifixed; style 1; carpels united or 

 splitting apart at maturity. 21 genera with 150 species; 4 genera and 5 species in 

 China. 



1. Tribulus Linn. Caltrop HHM (Chi Li Shu) 



Spreading herbs with pinnate lvs.: fr. splitting at maturity into 5-12 spiny 1- 

 seeded nutlets. About 15 species, widely distributed, 2 in China. (Latin: tribulus, a 

 caltrop, an iron crowfoot used in war.) 



1. Tribulus terrestris Linn. Puncture Vine ^M (Chi Li; Thorny Plant) (G.M. 950). 

 Prostrate herb; fls. pale yellow, V-IX; fr. spiny, VI-X. The eastern hemisphere; 

 locally in An., Hon., Ku. Weed in sandy soil. Fig. 198. 



87. RUTACEAE Rue Family Hl^ (Yiin Hsiang K'o; 

 Rich-fragrance Family) 

 Trees, shrubs or herbs with aromatic punctate exstipulate lvs. and regular fls.: 

 stamens 8-15, borne on a disc; ovary superior: fr. a berry or capsule, rarely winged. 

 120 genera and 1,000 species, mostly tropical; 18 genera and 40 species in China. 



Key to the Genera 

 A. Branches or leaves spiny or prickly: lvs. alternate. 



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