SCIENTIFIC AND POPULAB. 375 



a. T. nataiis L. (including T. quadrigpinosa Koxb.). Europe to 

 central Asia, nat. locally in V. S. Water Chestnut, Water-nut, 

 Jesuit' 8-nut (Venice), Water-caltrop, Sanghara-nut^ ; Fr. 

 Chataigne d'eau. /Seeds esculent. The Chinese (b) T. bicor- 

 nis L. tils, with fruit resembling a buffalo's head, is called Leng, 

 Ling or Links. Singhara nuts, a staple food in Cashmere, are 

 the fruit of (c) T. bispiiiosa L. (T. Cochin-Chinensis Lour., 

 T. incisa, Sieb. *fe Zucc. ), southern Asia and northern Africa. 



2018. TRAUVETTERIA, F. & M. Raimuculaceae. 



Named for Prof. Trauvetter, Russian botanist. Syn. Cimici- 

 fuga, Hydrastis, in part. A stout perennial herb. One species, 

 eastern Asia and eastern U. S. (a) T. Caroliliensis (Walt.) 

 Vail (H. Carolinensis Walt., C. palmata Michx. ). Eastern 

 U. S. and Japan. False Bugbane. 



2019. TREMA, Lour. Nettle-tree. Urticaceae. 



From Greek, "hole", alluding to pits in endocarp. Syn. 

 Sponia, Celtis, in part. Trees or shrubs. About 25 species, 

 warmer regions; 1 in U. S. (a) T. micrdntha B. & H. Flo- 

 rida to West Indies and Brazil. Nettle-tree. 



2020. TREPOCARPUS, Nutt. Trepocarpus. Umbelliferae. 



Smooth annual. One species, south-central U. S. 



2021. TRIANOSPERMA, Mart. Tayuya. Cuciirbitaceae. 



Herbaceous climbers, from fleshy roots. Syn. Dermophylla, 

 Bryonia, in part. Cayapouia, (No. 414 q. v. ) is the older and 

 preferable name, (a) T, ficifolia Mart, (perhaps the same 

 as C. ticifolia (Lam.) Cogn. (414 c. ) but also identified by 

 some authorities with B. Tayuya Velloso, C. Tayuya (Veil.) 

 Cogn. and with I), pendulina S. Manso). Brazil. Tayuya. 

 Boot, Kad. dermophyJlse, Rad. tayuyse; hydragogue, antisyph- 

 iliiic. The synonyomy is confused. Probably several spe- 

 cies are called Tayuya. See Cayaponia. 



2022. TRIADENUM, Raf. 1808. Triadenum. Hypericaceac. 



From Greek, "three glands". Syn. Elodea, Pursh 1814, 

 not Michx. 1803 nor Elodes, Adans 1763; Hypericum (Kew), 

 in part. Perennial marsh herbs with pink or purplish flowers. 

 Two species, both of U. S. 



2023. TRIA>THEMA, L. Horse Purslane. Aizoaceae. 

 From Greek, "three flowering". Herbs, generally fleshy and 



prostrate. About 12 species, warmer regions, mostly of Old 

 World; 1 in U. S. (a) T. monogjuum L. Florida to West 

 Indies and Venezuela. Horse Purslane (.Jamaica). 



2024. TRiBULUS, L. Caltrop. Zygophyllaceae. 



Greek plant name, signifying "caltrop" (i. e. three pointed). 

 Herbs or sub-shrubs, mostly prostrate, with spinose fruit. 

 About 12 species, warmer regions; 2 in IT. S. 



a. T. cistoides L. Florida and widely distributed along tropical 

 shores. Turkey-blossom (Jamaica), Nohu, Mahukona Violet 

 (Hawaii, with allusion to the fragrance), (b) T. terr^stris 

 L. Europe, adv. in U. S. Land Caltrop. 



