^ ri 



238 EUPHORBIACE^ (Brown). [Euijliorhia, 



crowded and compl etely 

 covering the top of the main 



stem (115) Braunsii. 



Branches when dried les.s than J 

 in. thick, cylindric or^^lightly 

 narrowing upwards, not 

 always covering tlie top of 

 the main stem, to its centre ; 

 Styles united into a eohmin 



-]J lin. long; glands of 



the involucre greeu or 



yellownsh-green : 



Tubercles on the hranches 



scarcely prominent ; 



peduncles about IJ lin. 



long, remaininggreenand 



fleshy as they persist ... (lOl) Huttonee. 



Tubercles on the branches 

 distinctly although 

 slightly prominent; 



peduncles 2-G lin. long, 



withering as they persist ; 

 AFain stem snbcylindric ; 

 involucre 2 lin. in 

 diani., with dull olive- 

 green glands ; ovary 



thinly ixibesecnt ... (106) arida. 



Main stem globose ; in- 

 volucre 2^-3 lin. in 

 diam.j with bright dark 

 green glands ; ovary 

 glabrous (107) decepta. 



Styles only shortly united at 

 their base or for J- J lin. : 

 Glands of the involucre 

 brown or chocolate- 

 coloured : 

 I^ranches covering the 

 whole top of the main 

 stem and when they 

 fall away thrir Imsea 

 form tubercles on the 

 naked part of tlie 



stem (^16) haliola. 



nranches arranged in many 

 series around a central 

 branchless tuljerculate 

 area at tlie top of the 

 main stem, not form- 

 ing tubercles on the 



stem when they fall 



away (lOr*) fusca. 



Glandri of the involucre green 

 or not brown or chocolate- 

 coloured : 

 Main stem bearing branches 

 all over the top, no 

 central branchless area ; 

 leaves 8-18 lin. lung ... (104) namibensis. 



