Valerianece.] 
MEXICO.— SUPPLEMENT. 
431 
erecto-patulis. Corolla infundibuliformis, lacinias calycinas superans, extus pubescens ; tubus inferne gracilli- 
nius superne dilatatus : limbus 4-lobus, lobis ovatis erecto-patentibus. Stamina 4 : filamenta lobis corollas 
alterna, longe exserta: antheros subglobosse. Stylus gracilis, corolla fere duplo longior: Stigma parvum, 
biloburn. Fructus dicoccus, calycis limbo basi contracto (et pedicellum aemulante) coronatus : coccis globosis 
monospermis, punctatis, indehiscentibus, demum ab axi persistente piano fenestrato calycem persistentem 
retinente solutis. Semen subglobosum, nigrum, rugosum, intus sulco profundo longitudinali notatum. 
This is a tall growing plant, with slender glossy stems, spreading filiform branches, and thin membrana- 
ceous leaves. Flowers so small, and in so perfect an involucre as to look, at first sight, like those of some 
Composita ; this involucre, at the base, by the union of the base of the leaves through the medium of the 
stipules, is cup-shaped. The flowers themselves are extremely curious, white or yellowish. Each one is 
pedicellate : the pedicels very hairy, or rather silky, and mixed with very narrow silky paleee or membranous 
setae. The ovary, though of course adherent with the tube of the calyx, has its two rounded lobes so 
separated by the axis, or continuation of the pedicel, that these lobes have the appearance of two globose 
glands, placed one on each side of the pedicel below its apex ; for above the ovary the calyx-tube becomes 
suddenly contracted, so as to resemble a pedicel to the free portion or limb of the calyx ; this latter is large 
(in proportion to the size of the flower), deeply cut into five, erecto-patent, spathulate, but acute, herbaceous 
segments, slightly fringed at the margin, whilst the white and membranous base is clothed with long, spread- 
ing, silky hairs, like the pedicel. Coccules but little altered from the lobes of the ovary, rather larger, and 
darker coloured, punctate ; they are indehiscent, fall off and leave the axis or flattened upper portion of the 
pedicel, which is fenestrated (Jig. 3.), or perforated with an oblong fissure, within which, at the base, is the 
placenta or receptacle of the seeds. The pericarp is rather thin, but succulent, and adheres pretty closely 
to the seed which is black and wrinkled, its inner face marked with a deep oblong furrow. 
Tab. XCIX. C. Crusea parviflora. — Fig. 1,. Flower ; Jig. 2, Fruit, crowned with the persistent calyx ; 
^g. 3, Calyx, after the coccules have fallen away, to show the perforated axis and the placenta or receptacle 
of the seeds ; Jig. 4. Back view, and Jig. 5. front view of a coccule ; ^g. 6. Seed : — magmjied. 
2. Crusea siibalata^ robusta, caulibus elongatis diffusis ramisque acute tetragonis angulis 
inferne alatis, foliis ovatis 'ovato-lanceolatisve petiolatis rigidiusculis pubescenti-tomen- 
tosis, ovario bilobo, corollas laciniis concavis, stigmate clavato integro. 
Hab. Between San Bias and Tepic. — Stems two feet and more long, spreading, acutely 4-angled, the 
angles winged below. Branches elongated, downy, stipules a broad short downy membrane with 2-4 rigid 
setse. Leaves an inch or an inch and a half long, of a harsh and firm texture compared with the preceding 
species, penninerved, the nerves few and nearly parallel with the midrib. Flowers pedicellate, but so dense 
as to form a very compact globose capitulum within the four-leaved involucre. Pedicels short, hairy. Ovary 
glabrous, globose, but scarcely 2-lobed. The contraction of the tube of the calyx above the ovary is verv 
slight. Calyx-limb much resembling that of the last species, but silky on the whole outer surface. Corolla 
with much longer and very concave, almost boat-shaped segments, velvety on the outside. Filaments very 
long and much inserted. Style shorter than the stamens. Stigma clavate or capitate, quite entire We find 
no description of this, or of the foregoing species, both of which undoubtedly belong to the Genus Crusea. 
Ord. XXV. VALERIANS^. Juss. 
1. Astrephia Mexicana; glabra, foliis bi-tripinnatifidis laciniis lineari-subacuminatis, 
paniculae terminalis ramulis gracilibus dichotome corymbosis, ramis ultimis spicatis 
