Clerodendron. 247 



b. Proportion of length and breadth of leaf =1—4:1 85. 



85. a. Corolla-lobes V2— 1-3 cM 86. 



b. Corolla-lobes 1.3— 2 V^ cM 95! 



86. a. Corolla-tube (3— )4— 6 cM 87. 



b. Corolla-tube 7 — lOVa cM 92. 



87. a. Leaves (the nerves excepted) glabrous above . . 89. 

 b. Leaves pubescent above 88. 



88. a. Calyx 0.7 cM.; corolla-tube glabrous; leaves IOV2— 18 



by 5V2— 9V2 cM. ; petioles 2— 6V2 cM. 



66. C. kalaotoense p. 307. 

 b. Calyx 0.8—1.3 cM.; corolla-tube pubescent; leaves 

 5V2— I2V2 by 3.2—8 cM.; petioles 1—3.2 cM. 



67. C. ingratum p. 308. 



89. a. Calyx 0.4 -V2 cM., teeth 0.15 cM 90. 



b. Calyx 0.7—1.1 cM., teeth 0.3— V2 cM 92. 



90. a. Corolla-tube 3 cM., pubescent below ; calyx sparsely 



pubescent 68. C. mindorense p. 309. 



b. Corolla-tube 6 cM., glabrous; calyx glabrous. 



69. C. Klemmei p. 309. 



91. a. Leaves entirely glabrous on both sides or with some 



short hairs beneath ... 70. C. longiflorum p. 310. 



b. Leaves more or less pubescent on the lower side (with 



rather long hairs) . . . . 71. C longituba p. 311. 



92. a. Plants myrmecophilous ; branchlets hollow, flstulose, with 



a hole on each side in the widened upper part of each 



internode 72. C. fistulosum p. 311. 



b. Plant not myrmecophilous 93. 



93. a. Calyx-lobes > tube, 1.3 — 1.8 cM. ; leaves membranous, 



18—20 by 2V2— 7V2 cM.; petioles 2V2— 5 cM.; acumen 



IV2— 3 cM 73. C. Ridleyi p. 312. 



b. Calyx-lobes < tube, 0.2 — ^72 '^^- '• leaves chartaceous 94. 



94. a. Corolla-tube glabrous; leaves 6V2 — 12 cM. broad. 



70. C. longiflorum p. 310. 

 b. Corolla-tube pubescent; leaves 3 — 6.7 cM. broad 



74. C. Navesianum p. 313. 



95. a. Plants myrmecophilous; branchlets hollow, fistulose, with 



2 holes on each side in the widened upper part of each 

 internode 72, C. fistulosum p. 311. 



