596 BOTANY OF THE AZORES. 
bracteatos uni -trifloros elongatis, foliis inferioribus. 
spathulato-ellipticis, corolle tubo limbum caly-. 
cemque paulo superante. Hab. in montibus ~ 
frequens; fortasse pro forma typica habenda. 
Varietas major seu maritima. Ramis sterilibus 
subnullis, floriferis ascendentibus tri-multifloris, 
foliis subrotundis oblongisve crassiusculis, corolle 
tubo limbum calycemque equante. Hab. in 
rupibus maritimis insulz Flores, atque ab oris 
versus montium radices sparsim ascendens. 
Subvarietates occurrunt, ex. gr. caule (primi 
anni?) simplici erecto—foliis plus minus ovatis 
—calyce corolla tubum superante — petalis 
bifidis, &c.. It is almost impossible to frame 4 
diagnosis for a species so very variable, and which 
might readily be split into half a dozen such 
book-species as those which have been carved. 
out of the Linnean Chironia Centaurium. = 
J 123 (262). Convolvulus arvensis, L. Fayal. (Floribus . 
albis. p 
v 124 (263). C. sepium, L. Flores. 
v 125 (—). C. Imperati, Vahl. Fayal. : 
Perennis, glabra, Caulis repens, ramosus. F olia 
carnosa, petiolata, cordato-oblonga, panduri- 
formia, vel tri-quinquelobata, lobo termina 
majore, obtusissima vel emarginata, apiculata. 
Pedunculi uni-biflori, in medio bracteati. Sep: 
acuta vel acuminata. Stylus simplex. Stigma 
capitatum bilobum. Corolla alba, magna. Fror: 
tus ? Hab. in litore arenoso, ad Porto Pimo; 
prope urbem Horta, in insula Fayal; atque 
arenarum mobilium spatia ampla caulibus reper- 
tibus dense occupans. The characters of C. Ae 
perati fit my plant pretty well. Whether or n 
itis one of the varieties of C. littoralis, Linn, 
may be questioned. - pen 
, 126 (256). Heliotropium Europeum, L. Pico. 
wo 
