Grewia.] TILIACEAE. 115 



Peduncles longer than the petioles ; leaves oblong to ovate ; 

 fruit -6--7 in. across : 



Leaves ovate ; peduncles arcuate ; tomentum of fruit 



matted 4. rhamnifolia. 



Leaves oblong ; peduncles straight ; tomentum of fruit 



spreading 5. Wightiana. 



Fruit slightly or deeply divided into 4 equal lobes ; gonophore 

 manifest ; peduncles stout, extra-axillary, solitary or in pairs, 

 never fascicled ; leaves often scabrous above, margins crenate or 

 crenate-dentate (Series 3. COLUMNARES). 



Lobes of fruit large, '4 in. long or more, distinct : 

 Buds -25 in. across; pedicels few together; leaves densely 

 pubescent beneath : 



Gonophore '25 in. long : 



Twigs and leaves beneath softly tomentose...6. Gamblei. 

 Twigs and leaves beneath harshly tomentose 



7. Lawsoniana. 

 Gonophore -4 in. long ; leaves softly pubescent beneath 



8. heterotricha. 



Buds -12 in. across; pedicels very numerous; leaves sub- 

 glabrous 9. umbellifera . 



Lobes of fruit small, -3 in. long or less, more or less united; 

 leaves ovate, obtuse, scabrous above : 



Peduncles equal to or not more than twice as long as the 

 petioles; leaves glabrous beneath; fruit slightly 4-lobed, 



shortly bristly 10. orientalis. 



Peduncles 3-6 times longer than the petioles ; leaves with 



soft spreading tomentum beneath; fruit deeply 4-lobed, 



covered at maturity with long soft hairs ...11. emarginata. 



Fruit normally deeply divided into 2 oval or emarginate lobes ; 



leaves usually glabrous, apex sharply acuminate, margin 



sharply serrate (Section 4. SERRULATAE) : 



Peduncles usually 3 times longer than the petioles ; twigs 



usually glabrous; leaves ovate-lanceolate 12. disperma. 



Peduncles about equal to the petioles ; twigs usually pubes- 

 cent ; leaves linear- to ovate-lanceolate : 



Pedicels thickened upwards 13. Barberi. 



Pedicels capillary 14. lanceaefolia. 



Leaves finely densely appressed tomentose beneath (Section 5. 

 BICOLORES) : 



Fruiting pedicels and peduncles long and slender ; fruit unlobed, 

 pisiform ; leaf conspicuously serrate up to the acuminate tip 



15. Eothii. 



