Mr. J. Miers on the genus Juanulloa. 187 



parallel margins, which are slightly connivent ; the tube of the 

 corolla is about 3 inches in length, contracted at base for the 

 length of \\ inch to scarcely more than 1^ line broad, and swell- 

 ing above to a diameter of half an inch ; the lobes of the border 

 are about half an inch in length and 4 or 5 lines in breadth, 

 somewhat obtuse and patent ; the stamens appear to originate in 

 the contraction of the tube, with the anthers considerably below 

 the mouth of the border ; the corolla is of much thinner texture 

 than that of M. coccinea : in the form of its berry and enveloping 

 calyx, the arrangement, size, and shape of its seeds, its lax testa, 

 very thin albumen, and form of its embryo, it quite agrees with 

 the former species. 



Juanulloa. 



This little-known genus of the ' Flora Peruviana ' was scarcely 

 understood by the botanists of our time, until the very interesting 

 account and excellent figure of a plant raised from seed in the 

 Botanic Gardens of Kew was lately published by Sir Wm. Hooker. 

 This proves to be a very different species from that figured by 

 Ruiz and Pavon, and although generically identical with the 

 Laureria mexicana of Schlechtendal, is again specifically distinct 

 from it. The genus approaches Solandra in its climbing habit, 

 large coriaceous leaves, and in the general structure of its flower 

 and fruit, agreeing with it also in having a calyx consisting of five 

 distinct sepals, conniving by their edges into an acutely pen- 

 tangular tube, but here they subsequently become quite separate ; 

 it is also dissimilar in the cylindrical form of its corolla, with a 

 small border of five rounded patent lobes, and with included 

 stamens. It likewise approaches Marckea in the structure of its 

 calyx, in which respect it resembles Nicandra and Cliocarpus, 

 with which latter genus it also agrees, in having stellate tomen- 

 tum. I have been able to complete from different sources the 

 following amended generic character : — 



Juanulloa, R. & P. Prodr. xxvii. tab. 4. Ulloa, Pers. Ench. i. 

 218. Laureria, Schlecht. Linn. viii. 513. Brugmansia, Sp. 

 hortul. — Calyx coloratus, 5-sepalus, sepalis oblongo-acutis, 

 marginibus subreflexis undulatis valvatim conniventibus, tu- 

 bum inflatum 5-angularem ore coarctatum et 5-dentatum siinu- 

 lantibus, dein liberis et persistentibus. Corolla cylindrico- 

 tubulosa, medio inflata, carnosula, fauce coarctata, limbo 5-lobo, 

 lobis brevissimis, rotundatis, patentibus, sestivatione imbricata. 

 Stamina 5, aequalia, inclusa, erecta, filamenta in coarctationem 

 imam corolla? inserta, basi villosa, antherce sublineares, 2-lobse, 

 lobis parallelis, connectivo lineari dorsali adnatis, intus longi- 

 tudinaliter dehiscentibus. Ovarium conicum, disco carnoso 5- 

 lobo impositum, 2-loculare, multiovulatum, placentis centra- 



