PHANEROGAMS — PROFESSOR BAYLEY BALFOUR. 125 



Suffrutex parvus glaber ramulis nigris striatis glutinosis. Folia lanceolata v. oblanceolata acuta 

 2-2£ poll, longa |-£ poll, lata interdum 4£ poll, longa 3£ poll, lata ssepe obliqua infra 

 gradatim in petiolum brevem attenuata integra v. supra medium remote dentata coriacea 

 v. tenuiter coriacea glabra glandulis pellucidis punctata et plus minusve glutinoso-nitida v. 

 opaca, juniora nigro-nitida agglutinata. Capitula multiflora parva \ poll. diam. 3-4 ad 

 apices pedunculorum corymbi paniculati pseudoterminalis multo v. pauciramosi 1 v. inter- 

 dum 4 poll. diam. sessiles v. subsessiles, corymbi rami ultimi glutinosi validi striati stepe 

 complanati bracteolis squamiformis paucis suffulti. Mores <$ pauciores. Phyllaria multi- 

 seriata adpressa concava, extima brevissima squamiformia apiculata extusque glanduloso- 

 puberula, interiora gradatim majora angustiora minusque glandulosa, omnia acuta carinata 

 margiuibusque nudis fimbriato-ciliatis, intima straminea linearia versus apicem angustata. 

 Eeceptaculum angustum depressum vix foveolatum. F lores lilacini. Corolla} tubus infra 

 medium incrassatus sursum parum ampliatus breviterque 5-deutatis. Antherce ad medium 

 exsertoe apicibus obtusis brevibus, caudis antberis triplobrevioribus. Stylus indivisus 

 exsertus. Achenia angusta 4-5-costata, costis pallidioribus pilisque adscendentibus 

 vestitis. Pappus uniseriatus squamiformis, squamis apice dilatatis barbellatis. 



Socotra. On the Haghier range above Tamarida and Kischen. B.C.S. 

 nn. 223, 616. Schweinf. n. 646. 



Distrib. Endemic. 



A small under-shrub, growing over all the hill regions of the island. The 

 adult form of our species has a shortly branched habit with smallish leaves and 

 small corymbs of heads. But we have from near Galonsir stout and rigid twigs 

 with large leaves (n. 223), and Sch weinfurth sends from Kischen like shoots with 

 large corymbs. These are probably young twigs or adventitious ones. 



The plant has quite the general appearance of a Psiadia, but its anthers 

 keep it out of the genus. Amongst the species of Pluchea, its nearest alliance 

 is probably with P. Dioscoridis, DC. (Prod. v. 450), a plant of tropical Africa 

 and Arabia, which is usually puberulous but sometimes glabrous. The 

 glutinous habit and small few-headed panicles of our plant separate it. 



2. P. aromatica, Balf. fil. in Proc. Koy. Soc. Edin. xi. (1882), 838. Tab. 

 XXXII. 



Fruticosa aromatica ; foliis lanceolatis v. elliptico-oblongis acutis petiolatis integris v. in parte 

 superiore obscure dentato-serratis ciliatis glanduloso-scabridis ; capitulis longe peduncul- 

 atis multifloris terminalibus v. axillaribus solitariis rarius in cymam dispositis ; phyllariis 

 extimis brevissimis glandulosis apice reflexis, intimis angustissimis glabris ; antheris 

 acuminatis ; stylo bifido lobis complanatis ; acheniis glabris ; pappo squamiformi. 



Frutex parvus aromaticus ramis inferne denudatis cicatricosis, superne foliosis fulvis denseque 

 glandulis capitatis firmis vestitis. Folia lanceolata v. elliptico-oblonga acuta 2-3 poll, 

 longa ^-1 poll, lata stepe subobliqua basi in petiolum stepe £ poll, longum canaliculatum 

 subamplexicauliter dilatatum angustata integra v. in parte superiore obscure deutato-serr 

 ata breviter ciliata glanduloso-scabrida coriacea glaucescentia nervis 3-5 primariis plus 

 minusve conspicuis. Capitida multiflora ^ poll. diam. terminalia solitaria ad apic s 

 ramorum axillarium rarius pedunculo communi bifido ; pedunculi longi(l£-lf- poll.) validi 

 plerumque paucis bracteolis foliaceis obsiti glanduloso-scabriduli striati sa?pe angulati et 

 sub capitulis dilatati. Phyllaria multoseiiata appressa concava, extima breviora lineari- 



