Robinson and Greenman—Genus Lamourounia. 169 
Ill. A Synoptic Revision of the Genus Lamourouwia. 
Lamovurouxia HBK. (Dedicated to J. V. F.C. Lamouroua, 
professor of natural history at Caen, born 1773, died 1825.)— 
Calyx campanulate, 4-cleft; segments subequal or connate in 
pairs (in one species the ventral cleft much deeper than the 
others, giving the calyx a unilateral and spathe-like form). 
Corolla long, much exceeding the calyx; throat elongated and 
more or less ventricose, laterally compressed ; limb bilabiate ; 
posterior lip erect, somewhat galeate, entire or emarginate; the 
lower usually shorter, ventricose, 2-plicate and with 3 small 
more or less spreading lobes. Stamens 4, didynamous, usually 
included and ascending under the galea, rarely exserted, all 
fertile or the posterior pairs with reduced sterile or obsolete 
anthers; fertile anthers contiguous or sometimes coherent in 
pairs, densely woolly ; cells distinct, parallel or oblique, often 
calearate at the base. Style undivided; stigma terminal. 
Capsule ovoid, loculicidal; valves entire, with central placente. 
Seeds very numerous, small, minutely ronghened or reticulated. 
—Chiefly perennial herbs exclusively of subtropical and western 
tropical America, extending from Northern Mexico to Peru, 
growing chiefly upon the mountains and at middle altitudes. 
Habit erect, decumbent, or rarely somewhat scandent. Leaves 
opposite, entire, dentate, serrate, crenate, or in one species dis- 
sected. Flowers orange to crimson, showy, spicate- or race- 
mose-paniculate, or somewhat corymbous.—N ov. Gen. et Spee. 
11, 335, t. 167-169; Benth. in DC. Prodr. x, 539. 
§ 1. EupHrasro1pEs Benth. 1.c. Fertile stamens 4, equal or 
nearly so; a very rudimentary fifth sometimes present. 
* Leaves bipinnatifid. 
1. L. murrirma HBK. Perennial, well-marked in the genus 
by its dissected foliage, scabrous-puberulent to densely and some- 
what glandularly pilose: base a small woody tuber: flowers in 
the typical form 12 to 16 lines in length.HBK., 1. c., 339. 
LL. laciniata Mart. and Gal., Bull. Acad. Brux. xii. 2, 32 (incl. var. 
pilosa, the commoner form).—Common at moderate altitudes 
(2,500 to 8,000 or even 11,000 feet), throughout Central and 
Southern Mexico to Guatemala; San Luis Potosi, Parry and 
Palmer, 687; Jalisco, Pringle, 2833; Valley of Mexico, Bour- 
geau, 612; Mexico, without locality, Graham ; Chiapas, Ghies- 
brecht, 704; Guatemala, Pl. Guat. Donnell-Smith, 813, 4013; 
Orizaba, Seaton, 134; Sierra de San Felipe, Oaxaca, Pringle, 
4829, and Welson, 1098, 1798. 
VAR. GRANDIFLORA Benth. Flowers considerably larger, be- 
coming 2 inches in length.—Benth., 1. ¢., 540. L. grandiflora 
Benth., acc. to Linden, Cat. n. 10 (1855), 6.—Jalisco, Hartweg, 
