NasH: REVISION OF THE FamiLy FougQureRIACEAE 451 
uniting by the inner edges and breaking away from the walls, 
forming a central column attached at the apex and at the base. 
Ovules 4-6, in two rows, in each cell, borne on the edge of the 
free portion of the septa. Styles 3, slender or stout, included in 
or exserted from the corolla, united only at the base or for their 
entire length. Capsule dehiscing loculicidally, 3-valved, the 
valves thick and coriaceous. Seeds oblong, compressed, at first 
broadly winged, the wing finally breaking up into long filaments 
similar to those on the body of the seed. Albumen thin, oily. 
Cotyledons flat, oblong to ovate, cordate at the base. Radicle 
short. 
Genera two, both natives of Mexico, one, Houguieria, also found 
in the adjacent parts of the United States. The /dria of Kellogg 
is often united with Fouguieria, but it seems more natural to keep 
it separate, both on account of habital characters and differences 
in the flowers. The short stout included styles united for their 
entire length, yellow flowers and columnar, normally unbranched 
trunk, justify this treatment. 
Styles more or less united, but free at the apex, exserted, the column and branches 
slender: shrubs or trees with branching trunk : corolla red. 1. Fouguieria. 
Styles wholly united, stout, short, included, forming a 3-angled stout body: tree with 
a stout columnar undivided trunk: corolla yellow. 2. Ldria. 
_ 1. FOUQUIERIA H.B.K. Nov. Gen. & Sp. 3: 452. 1820 
Lronnia H.B.K. Nov. Gen. & Sp. 6: 83. 1823. 
Philetaeria Liebm. Vidensk. Selsk. Skr. V. 2: 283. p/. 1851. 
Shrubs or trees with spicate or paniculate inflorescence and red 
sessile or pedicelled flowers. Sepals less than one half as long as 
the corolla-tube. Corolla red, cylindric to campanuiate, the seg- 
ments united into a tube for one half their length or more, the tube 
sometimes gradually enlarged toward the apex: lobes from erect 
to recurved or enrolled. Stamens ten to fifteen, more or less 
broadened and compressed dorsally at the pubescent base. Styles 
slender, exserted, united only at the base, or nearly to the apex. 
Species six; Mexico and the adjacent parts of the United 
States. 
Inflorescence corymbiform-paniculate. 
Inflorescence conic to elongated paniculate, or spicate. 
Corolla-tube cylindric, several times longer than the lobes. 
Inflorescence spicate. 
Inflorescence paniculate. 
Filaments unappendaged : panicle conic to ovate: bushy shrubs or trees. _ 
1. F, fasciculata. 
2. F. formosa. 
