268 BOTANY OF SOCOTRA. 



resemblance with the E. daphnoicles, Balf. fil. (in Trans. Roy. Soc. 168, (extra 

 vol.), 368) a plant endemic in Rodriguez. The affinity is very close, the specific 

 diagnosis resting on the slightly smaller foliage, the much smaller cymose umbels 

 with bracts and capitula also smaller, and these latter on very much shorter 

 pedicels. It is apparently not common on Socotra, we only found it in one 

 locality. 



£. E. (Tirucalli) Schimperi, Presl. Bot. Bemerk. 109: T. Anders, in 

 Journ. Linn. Soc. v. (1860), Suppl. 34 ; Boiss. in DC. Prod. xv. 2, 96. 



E. Larica, Boiss. Cent. Eupli. 24, and in DC. Prod. xv. 2, 96, and Flor. Orient, iv. 1090. 

 Arthrothamnos Schimperi, Schweinf. in herb. Nub. n. 924. 



Nom. Vern. Agebah (B.C.S.). Eschba (Schweinf.). 



Socotra. Common about Galonsir, Tamarida, and elsewhere. B.C.S. n. 

 292. Schweinf. nn. 526, 795. Hunter. 



Distrib. Nubia, Arabia, and Persia. 



In Schweinfurth's specimens, n. 795, the style is, as he remarks, much 

 shorter in fruit than is typical. 



9. E. (Tirucalli) arbuscula, Balf. fil. in Proc. Roy. Soc. Edin. xii. (1883), 

 93. Tab. LXXXIX. 



Arborea carnosa aphylla ; cymis terminalibus sessilibus ; involucri glandulis 5 concavis sub- 

 stipitatis ; capsulis tomentosis : seminibus levibus carunculatis. 



Suffruticosa alta v. arbor parva candelabriformis 20-pedalis carnosa plus minusve glauca ramis 

 validis ultimis sajpe elongatis (6-7 poll.) teretibus v. subcomplanatis. Folia obsoleta ad 

 squamas minutas deciduas reducta. Capitula ad extremitates ramulorum in cynias parvas 

 sessiles dense conferta ; bracteoe parvte ^ poll, longse ovatre v. rotundatae glabrae nitidie. 

 Involucrum tenue ^ poll, longum subglobosum extus tomentosum intus glabrum, bracteis 

 obtusis tomentosis, glandulis transverse elongatis concavis glabris substipitatis stipite 

 villoso. Stamina plurima, bracteolis interfloralibus membranaceo-fiinbriatis. Ovarium 

 non visum. Cajpsula -^ 6 poll, longa J poll, lata tomentosa profunde trisulcata minute 

 calyculata, pedicellis \ poll, longis validis, coccis carinatis apice rotundatis, stylis j^" poll, 

 longis. Semina fere globosa }j poll. diam. levia albida, carunculis nigris. 



Nom. Veen. Emka (Schweinf.). 



Socotra. Abundant. B.C.S. n. 207. Schweinf. nn. 241, 525. 



Distrib. Endemic. 



A distinct fleshy tree-Euphorbia with a dome-shaped crown, occurring 

 abundantly on the plains and on the hills. It is interesting to find such an old 

 type upon the island in view of the occurrence of a similar type and very nearly 

 allied species E. aphylla, Brouss. (in Willd. Enum. i. 501 ; Boiss. in DC. Prod, 

 xv. 2, 96), on the Canary Islands. In habit this species mimics the Dragon's 

 blood tree. 



On many parts of the hill regions of Socotra a fleshy tree-Euphorbia grows, 

 which has much shorter and stouter branchlets than the one above described, 



