Clerodendron. 239 



1. a. Calyx 5-merous 2. 



b. Calyx 3-merous (section III, Tridens H.J.Lam) 100. 



c. Calyx 2-lipped, one lip ovate, the other lanceolate 



63, C. utakwense p. 305. 



2. a. Corolla hypocraterimorphous; tube 4 cM. long or shorter 



(for. C. mindorense vide sub b.) (section I, Euclero- 



dendron Schauen 3. 



b. Corolla infundibuliform ; tube 4V2— lO'/g cM. long 

 (in C. mindorense 3 cM.) (section II, Siphonanthus L.) 84. 



3. a. Cymes axillary or pseudo-terminal .'..... 4. 

 b. Cymes terminal 5. 



4. a. Cymes axillary, few-flowered, shorter than or as long as 



the leaves, the upper ones sometimes forming a leafed 



thyrse (sect. I, subsection 1, Axilli flora Schauer) . 6. 



b. Cymes axillary or pseudo-terminal, in crowded thyrsi 



(sect. I, subsection 2, Densiflora ') Schauer) ... 13. 



5. a. Cymes in lax, leaf- and bractless, ± pendulous thyrsi; 



fruiting calyx much enlarged (sect. I, subsection 3, 

 Penduliflora Schauer) 21. 



b. Cymes in erect, terminal, by bracts and bracteoles 

 interrupted, narrow thyrsi; fruiting calyx little enlarged 

 (sect. I, subsection 4, Racemiflora Schauer) 



21, C, seixatum p. 267. 



c. Cymes in capituliform or umbelliform (in C. Friesii 

 subspicate) thyrsi; leaves usually cordate, pubescent; 

 calyx enlarged in fruit (sect. I, subsection 5, Paniculata 

 Schauer) 24. 



d. Cymes in large, wide, leafless, terminal thyrsi; leaves 

 with scales beneath ; branchlets with interpetiolar margins 

 of hairs (sect. I, subsection 6, Squamata Schauer) 76. 



6. a. Undershrubs, reaching 5 cM. in height, leaves present 



3 — 5 1. C, sarawakana p. 248. 



b. Shrubs or trees, larget 7. 



7. a. Calyx 0.3—0.6 cM. long 8. 



b. Calyx 0.6—1.2 cM. long 10. 



') See also Paniculata 24. 



