Mr. J. Miers on the genus Leucophyllum. 253 
campanulata, tubo amplo infundibuliformi, limbo 5-fido, sub-— 
bilabiato, lobis fere equalibus, antico subminori reflexo, 2 
posticis erectiusculis, omnibus oblongis, obtusis, zstivatione 
imbricatis. Stamina 5, inequalia, inclusa, corolle dimidio 
longitudine, 2 antica breviora, quinto interdum rudimentario, 
rarius omnino deficiente ; fi/amenta imo tubi affixa, glabra, basi 
crassiuscula, apice subdeclinata ; anthere sagittato-bilobe, lobis 
apice nexis, longitudinaliter intus dehiscentibus, quinti inter- 
dum minime, aut abortive. Ovariwm oblongum, glandula 
annulari fere obsoleta imo cinctum, 2-loculare, ovulis plurimis, 
dissepimento medio prominulo et incrassato utrinque adnatis. 
Stylus erectus, filiformis, apice declinatus, longitudine sta- 
minum. Stigma breviter bilabiatum, lobis adpressis. Capsula 
ovata, ccriacea, calyce persistente cincta, septicide dehiscens, 
valvulis apice 2-fidis, marginibus introflexis, imo basi columne 
subglobose placentiferee adherentibus. Semina plurima, mi- 
nuta, transversa, oblonga, compressa, dorso plana, quadrato- 
angulata, longitudinaliter curvata, striato-rugulosa, hilo ventrali 
et fere basal. Hmbryo in albumine carnoso oblongus, curvatus, 
subcompressus, cotyledonibus oblongis, radicula basali tereti 
vix latioribus, et 2-plo longioribus.—Suffrutices Mezicani, pube 
brachiato densissime tomentoso vestiti; folia alterna, subparva, 
crassa, uninervia, breviter petiolata; flores solitari, axillares, 
Solio subequales, breviter pedunculati, corolle tubo calyce 2-3- 
plo-ve lonyiore. 
1. Leucophyllum ambiguum, Humb., Bonpl. Pl. A’quin. u. 95. 
tab. 109; H. B. K. 1. 361 ;—foliis ovatis, basi apiceque acu- 
tiusculis, utrinque densissime tomentosis, cinerascentibus, ju- 
nioribus pallide incanis; laciniis calycinis lineari-lanceolatis, 
extus tomentosis, intus glabris, nitidis, 3-nerviis, corollz tubo 
amplo 3-plo brevioribus ; ovarii apice, stylique basi pilosis.— 
Mexico. Actopan, Prov. Mexico, alt. 6600 ped., Bonpland. 
Atotonilco el Grande, Prov. Durango, Hartweg, n. 857. Zi- 
mapan, Galeotti, n. 7210. 
This is described by Bonpland as a tall shrub, 8 to 15 feet in 
height, with a stem slightly tortuous, 4 or 6 inches in diameter, 
covered with a slightly rent bark. It is a very conspicuous ob- 
ject in the forests, showing itself at a distance by its silvery leaves, 
and forming a striking contrast with the dark green foliage of 
the surrounding trees. Its leaves are from 3 to $ inch long, 
5 or 6 lines broad, with a petiole 2 lines in length; its calyx 
measures 2 or 3 lines, and is smooth within ; its violet-coloured 
corolla is } an inch long, smooth outside and pilose within. This 
species may readily be distinguished from the others, by its leaves 
being acute at both ends; in the older ones the tomentum is of a 
