490 CXXUI, EUPHORBLIACEE (BROWN). | Euphorbia. 
Leaves apparently rudimentury and scale- 
like. 
Spine-pairs 4-1} in. apart; cymes on 
peduncles 4-5 lin. long. “ ° 
Spine-pairs 3-4 in. —- flowers un- 
known . . 
Stem-angles even, without evident teetli, 
Cyme-peduncles 6-10 lin. long; calyx 
under the ovary cut into segments 2-24 
lin. long; flowering branches spineless 
(always?) . 5 2 i 
Cyme-peduncles 2-3 lin. long ; calyx under 
the ovary cut into segments 2-1 lin. 
long; flowering branches spiny . 
Flowering branches (dried) {-Lin.indiam., 
armed with spines (except in a spineless 
form of 135, EB. heterochroma). 
Leaves well developed 2-12 in. long, 3-3 in. broad. 
Peduncles 2-4 together, 14 to 24 in. long, 
bearing 1 sessile and 2 pedunculate involucres 
Cymes sessile, with 3 involucres. ° . 
Leaves rudimentary or scale-like. 
*Spine-shields none; spines small, recurved- 
hooked, arising in pairs from the bark, which 
separates on dried specimens into 4—5 ribbon- 
like strips; branches 3-3 in.thick 
**Spine-shields united into a continuous horny 
margin along the stem-angles; spines in 
pairs, with or without a pair of smaller 
spines or prickles above them. 
Plant 3-9 in. (rarely up to 1 ft.) high. 
Stems 4 in. or less thick (dried) often 
twisted ; spine-pairs with a pair of 
smaller spines at their base . ° - 
Stems }-1 in. thick, not twisted. 
Branches flat, constricted into elliptic or 
orbicular segments 3-1 in. in diam. 
Branches (dried) + in. or less thick, 
4-angled ; spines in groups of 4, lower 
pair 6-10lin. long, upper shorter. 
Branches 4 in. or more thick, cylindric, 
with several angles, not constricted ; 
spines in crowded pairs, 4—6 lin. long. 
Branches 4—6-angled, more or less con- 
stricted at irregular intervals ; 
spines 3-4 lin. long. 
Branches 4-7 lin. in diam. at the 
thickest parts; spine-pairs with a 
pair of minute recurved prickles 
near their base. : 
Branches 6-12 lin. in diam. at the 
thickest parts; spine-pairs without 
@ pair of prickles at their base ; 
Plant 13-20 ft. high (size unknown in 138, 
E. nigrispina, but apparently more than 
190. E. conspicua. 
186. E. Candelabrum. 
169. #. Murieli. 
. 184. #. Barteri. 
116. EH. Teke. 
117. E. leonensis. 
. 142. E. Erlanger. 
126. LE. torta. 
15). 2. opuntioides. 
136. E. tetracantha. 
145. E. golisana. 
128. E. tetracanthoides. 
154. EB. fraterna. 
