134 BOTANY OF THE VOYAGE OF THE SULPHUR. 
552. Cauonycrion speciosum, Chois. in DC. Prod. v. 9. p. 345.—Isle of Taboga, Bay of 
Panama. 
Very few of the American specimens which I have examined come precisely 
within Choisy’s character of this very variable species. The three outer sepals 
are usually shorter in their dilated portion than the inner ones, and terminated by 
very long points, whilst the inner ones are longer without any points at all, or 
scarcely any. The peduncles are sometimes indeed “ longissimi,” but often also 
very short. The character of the genus is very obscure, as both Ewogonium and 
Ipomea are made to include species with hypocrateriform corolle and exserted 
stamens. 
553. Baratas? crassicaulis, sp. n., caule erecto elato fistuloso glabro, foliis amplis late cordato- 
lanceolatis glabris, corymbo laxo multifloro minute canescenti-tomentello, sepalis orbiculatis obtusis 
extus tomentellis, corolla infundibuliformi-campanulata extus minute tomentella.— Guayaquil. 
Caulis summitates adsunt pedales, non volubiles, glabri, leviusculi. Folia 6-10 poll. longa, 2-4 poll. lata, 
longiuscule acuminata, margine integra vel sinuata, basi auriculis rotundatis cordata vel angulato-subhastata 
membranacea, utrinque glabra, petiolo 2-4 poll. longo. Calyx 2-3 lin. longus, sepalis margine tenuibus glabris 
dorso canescenti-tomentellis, exterioribus paullo brevioribus, Corollz tubus supra ovarium leviter constrictus, 
mox in faucem elongatum ampliatus, limbo campanulato 5-angulato. Stamina inclusa. Styli lobi stigmatesi 
subglobosi. Ovarium non carnosum, supra medium 4-loculare, basi biloculare. 
This plant may be equally well placed in Ipomea, but it is unlike any species 
described. A transverse section of the ovary, if taken above the middle, shows 
four distinct and complete cells, if below the middle, two cells only, without any 
trace of the additional dissepiments. 
554, Bararas acetosefolia, Chois. in DC. Prod. v. 9. p. 358.—Guayaquil. 
These specimens have both the leaves and flowers smaller than usual, but 
appear to belong to the species. The Ipomea longifolia (Benth. Pl. Hartw. p. 16) 
referred here by Choisy, differs essentially in foliage, flowers, and ovary, being @ 
true Ipomcea with a two-celled ovary, a calyx 8 or 9 lines long, and a corolla full 
four inches diameter. 
556, Bararas paniculata, Chois. in DC. Prod. v. 9. p. 339.—Ovarium dissepimentis basi 
incompletis sub-4-loculare.— Guayaquil. 
556. Batatas pentaphylla, Chois. 1, c.— Guayaquil. 
557. Baratas quinquefolia, Chois. 1. c.—Tepic, Realejo, Guayaquil. 
558. Puarsrtis hispida, Chois. in DC. Prod. v. 9. p- 341.—Guayaquil. 
559. Puarsrtis heterosepala, sp. n., volubilis, caule pilis adpressis retrorsis pubescente, foliis 
latis cordatis acuminatis glabris vel vix puberulis, pedunculis folio brevioribus confertim 3-5- floris, 
