144 BOTANY OF SOCOTEA. 



leviter compressa 4-gona costis 1-2 in quoque facie intermedio infra angustata angulis 

 costisque rugosis et subtiliter strigosis superne in rostrum longum disco apicali pappifero 

 abrupte producta, rostro £ poll, longo achenii corpore ^ poll, longo longiore. Pappi setae 

 serrulatai basi connatae albae. 



Soeotra. On the plains. B.C.S. nn. 217, 594. Schweinf. n. 398. 



Disthib. Endemic. 



The achenes in this species are so very slightly compressed, that I formerly 

 referred it to the Barkhausia section of Crepis, wherein it finds an ally in 

 C. bursifolia, Linn. (Sp. 1131), a south European plant. But it probably 

 belongs more naturally to Lactuca. I have not succeeded in identifying our 

 plant with any described species, but in Kew Herbarium are a number of 

 unnamed eastern specimens, with several of which it claims near relationship. 



2. L. crassifolia, Balf. fil. in Proc. Roy. Soc. Edin. xi (1882), 842. 



Herba perennis glabra glauca valida divaricatim breviter ramosa ; foliis crassiusculis lyrato- 

 pinnatifidis, segmento terminali oblongo-acuto v. obtuso calloso-dentato et saepe inae- 

 qualiter lobato, lobis inferioribus irregulariter ad basin minoribus, radicalibus vix petiolatis 

 aniplexicaulibus, caulinibus sessilibus auriculatis ; capitulis 20-floris \—^ poll, lougis 

 oppositifoliis in pseudo-racemos breves dispositis ; phyllariis iutimis aequalibus linearibus 

 marginatis, extimis paucis late ovatis minoribus ; acheniis basi truncatis in rostrum breve 

 pallidum productis ; setis pappi scabridulis acheniis aequilongis. 



Herba perennis glabra glauca 3-4 poll, alta, radice longo recto lignoso valido, a collo ramosa 

 caulibus validis erectis, ramis brevibus divaricatis striatis. Folia crassiuscula lyrato-pinnati- 

 fida, lobo terminali oblongo-acuto v. obtuso rotundatoque haud raro lateraliter lobato 

 inaequaliter calloso-serrato-dentato, lobis inferioribus irregulariter deorsum minoribus 

 acutis v. obtusis calloso-dentatis borizontaliter v. suberecto-expansis, radicalia 1£ poll, 

 longa | poll, lata vix petiolata amplexicaulia, caulinia minora late auriculata, suprema 

 subcordata integra. Capitula circa 20-flora \-\ poll, longa oppositifolia in breves pseudo- 

 racemos oligocephalos disposita, pedunculis purpureo-striatis \-}^ poll.longis 1-2-bracteolatis 

 bracteolis ovatis aniplexicaulibus. Phyllaria intima linearia acuta v. obtusa scarioso- 

 marginata, extima 3-4 late ovata acuta subherbaeea multo-minora. Antherce basi breviter 

 sagittatim productse. Styli lobi dense papillosi. Achenia multicostata compressa basi 

 noncontracta apice in rostrum breve pallidum gradatim producta, costis acheniorum 

 interiorum rugosis, acheniis exterioribus saepe imperfectis costisque levibus. Pappus 

 multiseriatus, setis scabridulis albis £ poll, lougis acheniis aequilongis. 



Soeotra. On the plains.. B.C.S. n. 595. 



Distrib. Endemic. 



Another species of Lactuca not uncommon on the island. Apparently a 

 new one, but like the foregoing allied to several undescribed eastern species, of 

 which specimens are in Kew Herbarium. 



20. HETERACHiENA. 



Jfeterachcena, Fresen. in Mus. Senkenb. iii. 74 ; Benth. et Hook. Gen. PI. ii. 526. 

 A monotypic genus of Abyssinia, Arabia, and Beloochistan. 



