TEOCHODENDBACEAE 129 



A. Leaves alternate, palmately veined ; racemes pendulous, sepals 

 present, parts of the flowers in 4's ; fruit a 4-celled, deeply 

 lobed capsule Tetracentron. 



B. Leaves alternate or whorled, pinnat'ely veined ; racemes erect, 

 without sepals or petals ; stamens numerous, the anthers form- 

 ing a ring; carpels 6-10 in a whorl and connate below with 

 linear, spreading styles ; fruit 6-10 follicles, inserted below in 

 a fleshy receptacle, dehiscent at the apex .... (Trochodendron.) 



II. Wood with true vessels; leaves alternate; flowers perfect, proter- 

 androus with numerous, conspicuous long, red, stamens; carpels 

 many, ripening into obliquely winged fruits. Euptelea. 



EUPTELEA 



Shrubs or small trees with dark brown, conspicuous winter buds. 

 Leaves deciduous, alternate, simple, dentate, slender petioled. Flowers 

 in the spring before the leaves, in axillary clusters on branches of last 

 year's growth, without sepals and petals, perfect and proterandrous the 

 stigmas mature after the stamens have fallen away fertilized by pollen 

 disseminated by the wind; stamens indefinite, with large, red, linear 

 anthers on short slender filaments; carpels many, oblique, on short stalks. 

 Fruit a small, obliquely winged nutlet on a slender stalk, 1-4 ovuled. 



3 species; 2 in China, 1 (E. poylandra) is confined to Japan. 



Graceful ornamental trees propagated by seed and by grafts. 



Euptelea franchetii van Tieghem. 



Tree 12 m. tall. Leaves 5-10 cm. long, ovate, regularly or irregularly 

 sinuate-serrate, slender petiolate, light green on both surfaces. Flowers 

 usually with 12 stamens (7-20). 



Carpels 6-12, long capitate, usually 2-3 seeded. 



Central and Western China. 



E. pleiosperma Hooker F. and Thompson. 

 (E. davidiana Hemsley.) 



Leaves glaucescent and papillose on the under surface. 

 S. W. China and the Himalayas. 

 Closely allied to the above. 



