EiiphorUa.] EuriiOKBiACE.E (Brown). 241 



growtli into globose, clavate or cyliiulnc joints, 

 more or less tuberciilate or with prominent leaf- 

 scars ; glaiKl> of the involucre with 3-5 subulate 

 or finger-like processes : 

 Branches or joints globose or clavate ; peduncles 

 usually J-3 in. long, sometimes shorter ; styles 

 l^lin. long ' (79)globosa. 



Branches or joints mostly cyliudric or slightly 

 tapering u^^wards^ occasionally oblong or sub- 

 globose : 

 Peduncles J--3 in. long, simple or forked into 2 or 



3 rays ; styles 2-3 lin. long ... '. ( 78 ) ornithopus. 



Peduncles 1-2 liu. long, simple ( 77 ) tndentata. 



II. Plants armed with hard sharp spines, 



*Spines not in pairs, solitary or (in 150, L\ horrula and 

 151, E. polyijona') with 1-4 smaller spines clustered 

 at the base of the main spines, simple or stellately 

 branched, formed of modified peduncles : 

 t>^ terns or branches tessellately marked into rhomboid 

 areas or covered with conspicuous or slightly 

 evident tubercles arranged in spiral series not 

 forming distinct vertical angles ; spines simple : 

 Spines and peduncles similar, ^-2 in. long, J-1 lin. 

 thick at the base, straight ; glands of the 

 involucre entire : 



Plant much branched (bushy ?) 1-3 ft. high ; 

 leaves 1-3 m, ^*^^Q ; spiues usually ^rey or 

 brown 



«** ■*■ *■• •■■ mm,* •■« 



(135) loricata. 



Plant with crowded branches forming a densely 

 spiny hemispherical cushion 4J-6 in. high ; 

 leaves f-1^ in. long; spines white (^24) Eustacei 



Sjiines ^-2J in. long, 1-2J lin. thick at the base, 



much longer and stouter than the peduncles, 



curved ; glands of the involucre with 2-8 teeth 



or processes, ^-J lin. long on the outer marghi : 



Stem unbranciied, obconic or cylindric with stout 



spines arising from stout tubercles (in dried 



specimens the spines sometimes falsely appear 



to come from the axils of the tubercles) ; 



peduncles 6-12 lin. long, arising behind the 



spines (132) fascieulata, 



Stoui or main axis thick, conical, |-2 ft. high, " 

 densely covered nearly to the top with short 

 tuberculate branches intermingled with or 

 bearing spines ; flowering pedimcles 3-4 lin. 

 long, arising from the axils of the tubercles 

 at the tips of the branches (133) multiceps. 



ttStem with 5-20 distinct acute or tessellately tubercu- 

 late vertical or slightly spiral angles ; .opines 



scattered along the angles : 

 JSpines or some of them forked or stellately branch- 

 ing into smaller spines at the apex : 

 Stem 10-16-angled, unifoimly green; peduncle 

 with 1 involucre : 

 Stalk of spine-clusters 1^-4 lin. long ; spines 



i lin. thick, brown 0^-) stellaespma. 



FL. C. — VOL. v.— SECT, II. B 



