WESTERN TROPICAL AMERICA. 137 
Variat glabra, pubescens, vel hirsuta; foliis integris cordato-ovatis lanceolato-sagittatis vel profunde trilobis. 
Sepala subscariosa nec herbacea, setaceo-acuminata vel acuta, dorso hirsuta vel rarius glabra, Corolla 15-18 
lin. longa. 
576. Irpomma evolvuloides, Moric.—Chois. in DC. Prod, v. 9. p- 373.—Acapuleco. 
These specimens agree perfectly with Blanchet and Gardner’s Brazilian, 
Schomburgh’s Guiana, and Linden’s Mexican ones. The corolla as well as the 
habit of the plant are much more those of a Jacquemontia than of an Ipomea, and 
the stigmatic branches of the style are not quite so globose as they usually are in 
the latter genus. 
577. JACQUEMONTIA pycnocephala, sp. n., volubilis, undique dense tomentoso-hirsuta, foliis 
plerisque cordiformibus, pedunculis apice capitato-multifloris, bracteis late cordato-ovatis, sepalis 
exterioribus ovatis acuminatis, interioribus multo minoribus, corolla ealyce vix duplo longiore— 
Acapulco, 
Rami teretes, dense vestiti pilis mollibus patentibus in ramulis novellis velutinis. Folia vulgo 1-2- 
pollicaria, acute acuminata, margine integra vel undulata, basi auriculis latis rotundatis cordata, crassiuscula, 
utrinque molliter velutina, petiolo 3-8 lin. longo, Pedunculi nunc abbreviati, vix petiolo longiores, nune 
rarius fere 4 poll. longi, velutino-villosi, capitulum ferentes hemisphwericum dense imbricatum. Bractee 
exteriores late cordato-ovate, acuminate, foliacees, tomento velutino vestitw, 4-6 lin. long, 4-8 lin. late, 
interiores angustiores. Pedicelli brevissimi. Sepala exteriora 3-4 lin. longa, ovata, acuminata, basi cuneata 
vel angustata, interiora 2-3 minora, quorum intimum vulgo membranaceum acutum vix 1} lin. longum. 
Corolla 7 lin. longa, campanulata, glabra, lobis acutis. Stamina corolla breviora. Styli lobi stigmatosi 
crassiusculi, oblongi, iis J. violacew simillimi. 
This species differs from the downy form of J. violacea by the remarkable 
bracts which, instead of being smaller than the outer sepals, are very much broader 
and larger, as in some of the capitate Ipomee ; and also by the ferruginous down 
which covers both surfaces of the leaves more densely even than in the J, 
Serruginea. 
578. Jacquemontta violacea, Chois. in DC. Prod. v. 9. p. 397 var.—A very imperfect speci- 
men.— Panama. 
579. Jacquemontt1A corymbulosa, sp. D., volubilis, undique ferrugineo-tomentosa, foltis breviter 
petiolatis cordato-ovatis acuminatis, pedunculis elongatis apice cymoso- multifloris, bracteis ie 
setaceis, sepalis parum inaequalibus ovatis vel ovato-lanceolatis acuminato-acutis corolla i re- 
vioribus.— Guayaquil. 
Caules et folia fere Convolvuli nodiflori. Rami teretes, pube brevissims douse ods ee a. 
tomentosi. Folia in aliis speciminibus vix pollicaria, superiora minora, shone oi pe. "a 
bipollicaria, petiolo 6 lin. longo, omnia utrinque molliter tomentosa. | sbexsugiier 2-5 poll. ongi, on 
numerosissimis in cymam densam confertis. Bracteee majores vix lineam long, eres s al nepala cha 
anthesin breves, fructiferi 1-3 lin. longi. Calyces tomentoso-pubescentes, ‘ot rat HE vix eequans, 
rarissime fere 3 lin. longa. Corolla late campanulata, semipollicaris, coerulea. ‘Cape on 
glabra, quadrivalvis. | | 
NN 
