333 
IPOM@A platensis. | 
Lhe Plata Ipomea. 
ee 
PENTANDRIA MONOGYNIA. 
Nat. ord. Convotvutt. Jussieu gen. Div. I. 
ConvoLvuLAcem. Brown prod.481. Sect. I. 
IPOM@A. Supra vol. 1, fol. 9. fas 
I. platensis, ramis pedunculis petiolisque tuberculatis; foliis palmatis, lobis 
septenis cuneato-oblongis, obtusulis cum brevi acumine, extimis mino- 
ribus, pedunculis pauci-plurifloris superné cymosis pardm longioribus 
petiolo, calyce foliolisque suborbiculatis. 
Perennis, sempervirens, radice tuberosd. Folia glabra; lobi infra $ 
uncias longi, medius major infra unciam latus. Pedunculi solitarii, 1-5-floré 
vel ultra, erecti, graciliores petiolo, breviores Solio ; pedicelli breves, superné 
cymoso-sparst, singuli bracted parvd acuminata subtensi. Cor. albo-purpuras- 
cens, substrato albo lineis tenutssimis purpureis densé striato; tubus penna 
scriptorid duplo crassior, intits suturaté purpureus; limbus diametro 2 uncia- 
rum cum dimidio alterius, explanatus, corrugulatus, erdsus, ad plicarum ter- 
minationes exciso-emarginatus.  Anth, una exsuperans stigma: Vix nota 
constans? 
We are indebted to the valuable collection at Spofforth 
for the sample of this fine species, which we cannot trace 
to any on record. Mr. Herbert, from whom we received 
it, informs us that it was raised from seed collected by Mr. 
Cooper on the banks of the Plata, where it is found in great 
plenty. ‘The specific name has been adopted at Mr. Her- 
bert’s suggestion; and to that gentleman we are obliged for 
what we have to say of the plant; the sample not having 
been preserved for description after the drawing had been 
made. . 
Cultivated in the hothouse. Flowers in August. The 
foliage has a near affinity to that of Ipomma digitata; but a 
reference to the figure in Plumier shows the flower to be 
there of a very different nature from the one in our plant. 
An evergreen perennial plant with a tuberous root. 
Branches, peduncles, and petioles tuberculated. Leaves 
palmate; lobes 7, cuneately oblong obtuse and shortly ta- 
pered at the end, middle one the largest, under 3 inches 
long, and Jess than one inch broad. Peduncles several- 
VOK. Iv. x 
