62 . CONVOLVULACEJE. 
4i) 
Bucli’s Mad. lists which were formed chiefly on Masson’s col- 
lections, it may he presumed to have been introduced into the 
island some time between 1778 and 1820. It first occurs as a 
Mad. pi. in Raddi’s u Breve Osserv. sull’ Isola di Madera ” 
(Antol. ii. 267, Firenze 1821), under the wrong name of Cy- 
nanchum vincetoxicum Pers. 
Asclepias curassavica L. (Bot. Reg. t. 81), with its brilliant orange- 
scarlet umbels of fl., occurs in Mad. only in gardens occasion- 
ally, in and about Funchal. In the Canaries I met with it 
abundantly and apparently quite naturalized a mile or two 
up the Degollada de S. Sebastian in the island of Gomera. 
In the Cape-Verdes I found it only rarely in or about gaVdens. 
Stephanotis floribuncla Brongn. (BM. t. 4058) and Hoya carnosa 
(L.) (BM. t. 788) are also not unfrequent in gardens in Mad. ; 
the former bearing fr. abundantly at a height of about 1000 ft. 
above the sea, though not usually fructiferous lower down in 
Funchal. 
Order LXII. COXVOLVULACEriE. 
The Convolvulus or Bindweed Family. 
Fl. perfect regular. Cal. inferior 5-sepalous (in Wilsonia 
gamosepalous 5-toothed), sep. persistent often unequal mosth 
imbricate and enlarged in fr. Cor. hypogynous gamopetalous 
bell- or funnel-shaped o-lobed 5-plaited, lobes twisted in bud. 
Stam. 5 opposite the sep., alternate with cor.-lobes, inserted 
towards the base of cor. -tube. Antli. mostly sagittate finally 
twisted. Ov. mostly with an annular or cup-shaped hvpog. 
disk ( nectary ) round its base, of either 1 or 2-4 mostly com- 
bined rarely distinct cells or carpels, each cell 1-2-ovulate. 
Style mostly 1 simple or bifid, very rarely 2 styles; stigmas 1 
or 2 simple or bilobed. Fr. a 1-4-celled caps., cells or carpels 
1-2-seeded ; seeds angular rounded at the back, attached bv 
their base to the inner angle of the dissepiments, their shell 
(testa) often villous or pubescent, always hard and black or 
dark brown ; albumen mucilaginous ; cot. large leafy corrugate, 
or plicate ; radicle incurved inferior. — Herbs or slir. often milky, 
mostly twining climbing or sarmentose. L. alternate, simple 
and entire, pedatilobed, or palmate. Inflorescence various, 
but pedic. always jointed on to ped. Fl. mostly conspicuous 
purple, p., r., b., w. or y., seldom fragrant. Root somethin :s 
tuberous, edible or with drastic properties, e. g. Batata edt/lu 
(Thunb.), B. Jalapa (L.), Ipomcea Purga Wend., Convolvuha 
Scammonia L., & c. 
VOL. it. 
D 
