294 CHINESE ECONOMIC TEEES 



Inflorescence a compact, 3-12 flowered corymb; flowers white, spotted 

 purple on the throat, up to 4 cm. long. Capsule 30-45 cm. long. 



Chihli, Shantung, Shensi, Kweichow, and Yunnan. Common 

 around Peking. 



Catalpa fargesii Bureau. 



Tree to 16 m. tall. Branchlets, leaves and inflorescence pubescent 

 with branched hairs. Leaves ovate, acuminate, rounded at the base, 

 entire, slightly pubescent above, more or less pubescent or densely 

 yellowish tomentose beneath, 7-15 cm. long. Corymb 7-10 flowered, or 

 more often fewer flowered in the lower branches. Flowers 3 cm. long, 

 rosy-purple, with purplish-brown spots on the throat. Capsule 45-60 

 cm. long. 



Western China. 

 Catalpa vestita Diels. 



Closely allied to the above. The leaves and flowers are smaller. 

 The under surface of the leaves is densely white tomentose. 



May be only a form of 0. fargesii. 



Catalpa duclouxii Dode. 

 (C. sutchuenensis Dode.) 



Tree to 25 m. tall. Parts glabrous. Leaves ovate, acuminate, usually 

 rounded or subcordate at the base, with purple spots in the axils of the 

 veins beneath, 13-20 cm. long, 10-13 cm. broad. Flowers rosy-pink 

 with orang'e spots on the throat, 4-4.5 cm. long. Pods 60 cm. long. 



Central China. Allied to C. fargesii. 



RUBIACEAE 



Trees, shrubs or herbs. Leaves simple, opposite or whorled, usually 

 entire, with stipules. Flowers perfect, rarely unisexual, regular, 

 rarely slightly unsymmetrical; calyx adnate to the ovary, 2-6 lobed, cut 

 or toothed, or absent; corolla gamopetalous, 4-6 lobed, usually regular; 

 stamens 4-6, inserted on the corolla and alternate with its lobes; ovary 

 inferior, mostly 2 celled (l-many). Style simple or lobed. Fruit a 

 capsule, drupe or berry. Seeds various, albumen fleshy or horny or 

 absent. 



