Neohoutonia.'] 



CXXII. EUPHOllBIAOE^ (pRAIN). 



91 i) 



1. N. macrocalyx. 



clustered ; bracts minute. Female flowers in less copious panicles, 

 solitary. 



Species 8, all endemic. 

 Flowers large for the genus (males 2^ lin. wide when 

 open, female calyx 5 lin. long, 8 lin. wide); male 

 tiowers pedicelled; female calyx-segments lanceolate, 

 longer than the tube ; pubescence of leaves confined 

 to nerves, veins and reticulations .... 

 Flowers small (males only 1-1^ lin. wide when open, 

 female calyx where known only 2 lin. long, 3 lin. 

 wide). 

 Pube?cence or scui'f of leaves confined to nerves, veins 

 and reticulations; female calyx-segments where 

 known triangular, shorter than the tube; male 

 fiowers pedicelled. 

 Leaves with long white hairs as well as stellate- 

 pubescence and Ecui-f on main nerves; male 

 calyx hirsute. 

 Twigs and male panicles softly hirsute with long 



simple hairs ..... 



Twigs and male panicles scurfy stellate-pubescent 



only 



Leaves sparsely scurfy on nerves and veins, without 

 any long simple hairs ; male calyx glabrous 

 Pubescence or scurf on leaves continuous and felted 

 over the whole under surface ; female calyx-seg- 

 ments where known lanceolate, longer than the 

 tube. 

 Leaves thinly membranous; male flowers pedicelled. 

 Leaves above softly hirsute on the nerves with 

 long white hairs; beneath softly, loosely 

 velvety; n)ale calyx hirsute 

 Leaves above sparsely scurfy on the nerves; 

 beneath closely firmly adpressed-scurfy ; malo 

 calyx glabrous. 

 Filaments slender, longer than the anthers; 



extra-staminal glands ovate, obtuse, distinct 6. iV\ ofricana. 

 Filaments broad, nut exceeding the anthers; 

 extra-staminal glands lanceolate, acute, 

 very minute . . . • . .7. 



Leaves firmly membianous ; male flowers sub- 

 sessile; male calyx sparingly hirsute or glabrous 8. 



2. 



4. 



N. diaguissensis. 

 N. Mannii. 

 iV. glahrescens. 



5. j^' velutina. 



N. canesceiis. 

 N. Melleri. 



1 . N. macrocalsrx. Pax in Engl. Jahrh, xxx. 330. Tree, 50-0 T) ft. 

 high ; twigs stellate-scabrous. Leaves distinctly petioled, orbicular- 

 cordate, acute or obtuse, entire or somewhat undulate or crenate, 8 in. 

 long, as much across, green, hoary-stellate beneath on nerves, veins and 

 reticulations only, with a few scattered flat glands above, sparsely 

 stellate-scurfy on nerves and reticulations; stipules lanceolate, 5 lin. 

 long. Male flowers pedicelled, copiously panicled, large for the genus, 

 in bud globose, 2J lin. wide when open. Calyx densely stellate-pubej-- 

 cent. Stamens about 30 ; filaments longer than the anthers : connective 

 with a single terminal gland ; extra-staminal scales oblong, truncate or 



