PHANEROGAMS— PROFESSOR BAYLEY BALEOUR. 143 



Prostrata nana subcaespitosa lignosa cano-tomentosa, ramulis angulis proventu glabratis. Folia 

 sessilia linearia obtusa £ poll, longa ^ poll, lata integra supra canaliculata crassa persis- 

 tentia. Capitula plerumque 7-flora homogama discoidea subsessilia solitaria pseudo- 

 terminalia. Phyllaria imbricata 4-5-seriata pallida glabra, intima membranacea oblongo- 

 linearia subacuminata albida basique intus brunnea £ poll, longa patentia, exteriora 

 gradatim minora rigida anguste marginata late ovata leviter concava apice subulato-pung- 

 entia acuminata straminea. Rcceptaculum concavum alveolatum nudum. Corolla |- poll, 

 longa, lobis lineari-acutis reflexis extus pilis adpressis paucis vestitis. Antherarum 

 apices acuminati, caudis setiformibus copiose pilosis loculis aequilongis. Achenia dense 

 setosa T ^ poll, longa. Pappus multiseriatus setis conformibus complanatis basi latioribus 

 serrulato-barbellatis acbeniis multo-longioribus sed corollae aequilongis. 



Socotra. On the cliffs overhanging the shore on the south-west of 

 Galonsir, at an elevation over 1500 feet. B.C.S. n. 157. Hunter. 



Distrib. Endemic. 



A striking new species, easily diagnosed by its habit and facies from all 

 hitherto described. Its position in the genus is in the vicinity of the Cape 

 of Good Hope species D. diacanthoides, Less, (in Linnsea v. (1830), 279). It 

 is a plant of the limestone regions in Socotra. We only found it in one 

 locality, but there in profusion. 



19. LACTUCA. 



Lactuca, Linn. Gen. n. 909 ; Bentb. et Hook. Gen. PI. ii. 524. 



A large genus of herbs widely spread in the old world, and also found in 

 North America. Both the Socotran species are endemic. 



1. L. rhynchocarpa, Balf. fil. in Proc. Eoy. Soc. Edin. xi. (1882), 841. 



Herba tenuis glabra depressa v. a basi ramosa caulibusquesuberectis ; foliis glaucis lyrato-pinn- 

 atipartitis, segmento terminali oblongo-acuto v. rotundato v. panduriformi subaculeato- 

 dentato, segmentis inferioribus gradatim minoribus runcinatis, radicalibus breviter petiolatis 

 subamplexicaulibus, caulinibus sessilibus; capitulis parvis 10-12-floris § poll, longis oppositi- 

 foliis in laxos pseudo-racemos dispositis ; phyllariis intimis ensiformibus obtusis post 

 antbesin vix basi incrassatis, extimis parvis ovato-acutis ; acbeniis vix compressis 4-gonis 

 costis 1-2 in quoque facie conspicuis, infra angustatis, apice in rostrum longum abrupte 

 productis ; pappi setis serrulatis. 



Herba perennis depressa v. suberecta glabra a basi multiramosa, radice tenui, caulibus sub- 

 adscendentibus v. decumbentibus tenuibus striatis. Folia lyrato-pinnatipartita, lobo 

 terminali oblongo-acuto v. rotundato v. panduriformi setoso-dentato, lobis inferioribus 

 gradatim minoribus runcinatis acutis v. obtusis dentatis saepe setulosis, radicalia l|-2 poll, 

 longa |-J poll, lata breviter petiolata petiolo subamplexicauli, caulinia sessilia sub- 

 auriculata, suprema saepe lineari-acuta v. cuspidata integra, glauca crassiuscula. 

 Capitula parva 10-12-flora § poll, longa. oppositifolia solitaria ad pedunculos f-l£ poll, 

 longos tenues bracteolis integris subulatis minutis instructos. Phyllaria intima 6-7 

 ensiformia obtusa post antbesin parum acuta et basi incrassata ; calyculi squamae paucae 

 parvae herbaceae angustae ovatae acutae. Beceptaculum nudum ^ poll. diam. Corollas 

 ligula 5-dentata. Anthera basi obtuse productae. Styli lobi apice conici. Achenia 



