Lm'anthus.'] cxix. loranthace^ (sprague). 267 



tube; lohes erect or rejlexed, longer than the tube. Stamens inserted at or above 

 the base of the corolla-lobes ; filaments involute, often transversely grooved on the 

 outer surface, produced above into a tooth or rim in front of the anther ; anthers 

 linear, not divided transversely. Disc annular. Style not skittle -shai^ied ; stigma 

 capitate. — Odontella, Van Tiegh. in Bull. Soc. Bat. France, xlii. 259. 



Corolla-tube without a suprabasal swelling. 



Leaves very small, densely greyish-pilose in an adult 



state 109. L. Ghikce. 



Leaves glabrous or nearly so in an adult state. 



Corolla minutely and densely pilose outside . .110. L. kihuirensis. 



Corolla glabrous outside. 



Young branchlets finely and densely warted . 111. L. myrsinifolius. 



Young branchlets not warted. 



Umbels shortly but distinctly peduncled . . 112. L. glabrattts. 



Umbels sessile. 



Leaves 3-9 lin. long, li— 3 lin. broad, thickly 



coriaceous; nerves usually not visible . 113. L. micropliyllvs. 

 Leaves larger ; nerves more or less visible. 

 Bract more or less pilose, sometimes 



minutely ; calyx ciliate . . . 116. L. Schimperi. 



Bract and calyx minutely papillate . . 115. L. Kelleri. 



Bract and calyx glabrous . . . 114. L. ugogensis. 



Corolla-tube with an ellipsoid suprabasal swelling . . Wl . L. sulphureus. 



23. RHAM^'IFOLII. Umbels axillary, solitary or fascicled ; bract cupular ; 

 Jtowers pentamerous, gamopetalous. Corolla clavate above in bud, glabrous out- 

 side / tube very short, swollen above the base, not split unilaterally ; lobes reflexed. 

 Filaments filiform and straight below, thickened and involute above, produced into a 

 tooth in front of the anther ; anthers linear, not transversely divided. Disc annular. 

 Style not skittle-shaped ; stigma capitate. 



Only species . . . ■* . . . . 118. L. rhamnifolius. 



24. Obtectiflori. Umbels axillary, solitary or fascicled ; bract unilaterally 

 developed from a saucer-shaped base, sometimes foliaceons ; flowers pentamerous, 

 gamopetalous. Calyx short. Corolla capitate in bud, glabrous outside ; tube 

 slightly swollen at the base, split unilaterally; lobes erect. Filaments infiexedy 

 produced above into a tooth in front of the anther ; anthers oblong or linear, not 

 transversely divided. Disc annular. Style not skittle-shaped ; stigma capitate. 



Branchlets more or less tetragonal (at least in a young 

 state); bract 2-6 times as long as the receptacle 

 and calyx. 

 Bract narrowly boat-shaped, with a narrow dorsal wing 



or horn arising below the apex .... 119. L. subulatus. 



Bract oblong, more or less fiat, slightly apiculate, but 

 without a dorsal appendage. 

 Leaves narrowly oblong, about 3 times as long as 



their breadth ....... 120. L. latibracteatus. 



Leaves ovate or ovate-oblong, about lA-2 times as 



long as their breadth 121. L. usambarensis. 



Branchlets not tetragonal ; bract equalling or slightly 



longer than the receptacle and calyx .... 122. Z. longipes. 



25. PuRPURElFLOHi. Heads axillary, solitary or fascicled, sessile, few- 

 Howered ; bract cupular ; floivers pentamerous, gamopetalous. Calyx tubular. 



