{ 



318 



CONVOLVULUS involucratus 

 Leafy-cupped Guinea Bindweed. 



PENTAXDRIA MOXOGYyiA. 



^ Nal.ord. CosvoLVun. Jussieu gen. '13'2. 



CoNVOLvuLACE^. Bioion prod. 481. 

 CONVOLVULUS. Supr^ vol. %JU. 133. 



_ Hh. Cnule nolubilL 



C. involucratus, foliis cordato-hastatis pubescent! bus, pedunculis subtrifloris, 



calycibus bracteatis. IVilld. sp. pi. I. 84>5. 



Planta annua, tota villosa. Caulis herbaceus, teres. Folia cordato- 

 naslaia, sulitriuncialia, loho medio ovato-acuminalo^ cuspidato, lateralibus 

 plunks minoribiis horizonialibus, brevissime ovatis: petiolus teres, parum 

 breviorjblio, crasdtudine fere ramorum. Pedunculi so/i/oni, l-3^ri, mid- 

 tum ioiigiores at graciliores petioio, longiores vet eequales folio^ tereles^ stric- 

 ttusculi, nunc supra semcl v. bis breviter divisi, bracteis 2 oblongo-acuminatit 

 sub quaque divisura : peiUcelli breves. Bractese florales 2 angustie, lineari- 

 lanceoiatfE, breviores calyce sub quoquefiore. C&\.foliac€us, magnus, inaqua- 

 lis, viUosuSf persistens, mollis, recurvo-patens ; foliola 2 extenora maxima, 

 inter se aqi/alia, lato-ovata, acuta, opposita, nervosa, (h Willdenovio pro 

 "Tacte'is habita? J ; interiora tria istis conjbrmia, minora, inter se inaqualia. 

 Cor. extils pubescens, rofato-iiifundibuliformis, limbo obsolete quinquangulari. 

 FiJ. subulata^ alato-membranosa, planiuscula, subpubescentia , tubo brevi ad- 

 7iata, singula post ice adjuncluram cumjauce dentibus 2 obsolelissimis excepta. 

 Anth, pallidee, erectte, sagittatoMneares, longitudinejer^jilamentorum. Pistil* 

 i^xm tequale caltfci : germea hirsutum semibiloculare, ir-spermum; Bty]oacapil- 

 iaris, pilosus, coloralus, indivisus: stigmata 2, lobijbrmia, divaricata, sub- 

 ovato-oblonga, crassa, carnosa, granulata. 



We are obliged to Sir Abraham Hume for the specimen 

 of this rare and curious Bindweed. There is no reason 

 to suppose that the species has ever been introduced into 

 Europe till now. Sir Abraham's gardener informs us, that 

 the seed was received from the Isle of France; and was 

 raised in the bark-bed of the hothouse at Wormleybury, 

 where it has nui up among and wound round the other 

 plants. The flower opens either in the night or very early 

 in the morning; finally closing about 4 or 5 o'clock in 

 the afternoon. The plant, from which WiUdenow insti- 

 tuted the species, was native of Guinea ; the one preserved 

 in the Baoksian Herbarium is from the same quarter; m 

 them the peduncles have sometimes 2 and even 3 flowers. 

 In technical character our plant agrees very well with the 



VOL. IV. " 



