MOUNT BORAIMA IN BRITISH GUIANA. 41 



shorter than the florets, with imbricating' bracts in 10 or 12 series, the innermost about 

 1^ in. long-, lf-3^ lin. broad, strap-shaped to Lanceolate-oblong, obtuse, the outer 

 gradually smaller, ovate, obtuse, tomentose on tlie hack. Receptacle with a few 

 deciduous bracts, scattered among the florets, about 1| in. long, linear, obtuse, sparseh 

 and minutely denticulate-ciliate. Corolla glabrous, with a lube about ! in. long, 

 slightly enlarging upwards, and spirally revolute linear-acute lobes, about 8 lin. long, 

 §— § lin. broad. Anthers about 7 lin. long, with the tails connate in pairs. Ovary ] in. 

 long, compressed, glabrous. Style much exserted, minutely bifid at the apex. Pappus- 

 bristles copious, unequal, the longest about 10 lin. long, minutely adpressed pubesceut, 

 dull straw-coloured, or pale tawny. 



Summit of Mount Roraima, 1S000 ft., McConnell 8f Quelch, 661. 



A very distinct species, readily distinguished by its large heads, and the very long 

 exserted styles. It appears to be a connecting link between Stifftia and Wimderlichia. 

 The presence of bracts upon the receptacle and the minutely bifid stigma, technically 

 place it in the genus Wunderlichia, Biedel, but the plant has a different appearance, 

 and the receptacular bracts are not persistent and not of the same character or scarious 

 textm-e as those of Wunderlichia. In all probability when more species are discovered 

 it will be found that the two genera will have to be united. 



Qtjelchia, N. E. Brown, gen. now 

 Capitula 1-flora in glomerulum vel cymam densam aggregata. Involucruni conico- 

 tubulosum, bracteis imbricatis interioribus elongatis, exterioribus gradatim brevioribus 

 ovatis. Rcceptaculum parvum, nudum. Corolla regularis, profunde 5-loba, tubo 

 brevissimo, lobis linearibus. Antherac basi caudato-sagittatse, caudis retrorsim subbarbatis. 

 Styli rami breves, erecti, truncati. Achsenia subteretia, leviter costata. Pappi seta? 

 copiosse. — Erutex, foliis alternis integris coriaceis. Capitulorum glomeruli pedunculati. 



Quelchia confehta, N. E. Brown. (Plate 7, figs. 8-14.) Eaini apice tomentosi. Folia 



petiolata, obovata vel oblongo-oblanceolata, obtusa vel apiculata basi cuneato-acuta, 



primum subtornentosa, demum glabrata. Glomeruli vel corymbi |-1 poll. diam. 



Pedunculi tomentosi. Capitula sessilia, 1-flora, conferta. Involucri bractea? 



interiores anguste lanceolata?, obtusa?, glabra? ; exteriores ovata?, dorso tomentosa?. 



Corolla glabra. Achsenia 2} 2 lin. longa, glabra. Pappi seta? 3-4 lin. longa? vix 



vel leviter scabrida?. 



Apparently a shrub, densely tomentose on the youngest parts of the shoots. Leaves 



alternate, coriaceous, petiolate ; petiole 2-G lin. long, tomentose in the young state 



becoming glabrous; blade 1-2^ in. long, 5-10 lin. broad, obovate or oblong-oblanceolate, 



obtuse or more or less apiculate, cuneate-acute at the base, entire, at first with a thin 



tomentum on both sides, which soon disappears and the leaf becomes glabrous ; midrib 



impressed and pubescent above, very prominent beneath, veins reticulated, impressed 



above, scarcely prominent beneath. Corymbs pedunculate, small, hemispherical or 



subglobose, very densely many-headed, f-1 in. diam. Peduncles h-\h in. Ion"-, 



SECOND SERIES — BOTANY, VOL. VI. G 



