RUBIACEAE 139 



cordate entire or angled rather than lobed leaves; large spot- 

 ted whitish funnel-shaped perfect gamopetalous flowers; and 

 long cylindrical 2-valved capsules with flat seeds long-ciliate 

 from the ends. 



1. Flowers and fruit in racemes. C. Bungei. 



Flowers and fruit in panicles. 2. 



(Pods about 5 mm. in diameter: leaves mostly angled: 

 twigs hairy. 3. 

 Pods about 8 mm. in diameter: seeds pointed: leaves rarely 

 angled: twigs glabrous. 5. 

 Pods fully 10 mm. in diameter: seeds obliquely truncate: 

 leaves often angled. (Warder's catalpa). C. speciosa. 



3. Mature leaves glabrous. (Japanese catalpa). C. ovata. 

 Mature leaves pubescent. (Teas' catalpa). 4. 



4. Leaves green. X C. hybrida. 

 Leaves purple while young. X C. hybrida purpurea. 



5. Tree. (Common catalpa). 6. 



Shrub, or usually grafted as a standard. C.bignonioidesnana. 



6. Leaves green. C. bignonioides. 

 Leaves yellow. C. bignonioides aurea. 



CHILOPSIS. Desert Willow. 



Deciduous shrubs or small trees with soft dark brown 

 wood with diffused rather large ducts and fine but evident pale 

 medullary rays; slender somewhat angled twigs; small angled 

 pale homogeneous pith; whorled or opposite or even scattered 

 raised crescent-shaped small leaf-scars with a single bundle- 

 trace; no stipule scars; small compressed roundish buds with 

 2 nearly valvate outer scales; simple subsessile willow-like 

 leaves; rather large trumpet-shaped perfect gamopetalous flow- 

 ers in terminal racemes; and long slender cylindrical 2-valved 

 capsules and thin winged seeds, long-ciliate especially at the 

 ends. 

 Leaves linear to narrowly lanceolate, entire. . C. saligna. 



Family RUBIACEAE. Coffee Family. 

 A large heterogeneous family, largely of the tropics, yield- 



