162 
CALYCIFLORjE. 
1. Mentzelia aspera. Rough Mentzelia . 
Petals ovali-subrotund obtuse scarcely longer 
than the limb of the calyx, much longer than the 
stamens. 
M. setis uncinatis munita, fructubus sessilibus ad divari- 
cationes ramorum. Browne, 24t>. 
II A B. Dry thickets, on the Southside. 
F L. November. 
Herbaceous about three feet in height, dichotomously 
branched : branches few, subsimple, hirsute with stiff un- 
cinate hairs, intermixed with pubescence. Lower leaves 
the largest and triangular in shape ; upper leaves ovate, 
acuminate, coarsely serrated, hirsute with the hairs on the 
under surface uncinate. {Style apparently simple : stigma 
obtuse. Capsule hirsute with hooked hairs : seeds 4-5. 
— A coarse weed, with yellow flowers, to be met with in 
the driest districts. The seeds adhere to the clothes by 
means of the stiff uncinate hairs with which they are co- 
vered, 
ORDER LXXXIII. TURNERACEiE 
Calyx inferior, with the lobes 5, concrete as 
far as the middle, imbricating. Petals 5, twisted 
during (Estivation. Stamens 5, inserted into the 
tube of the calyx below the petals. Ovary supe- 
rior, free^ 1-celled, with 3 parietal placentae : 
ovules go , anatropal : styles more or less coher- 
ing or forked : stigmata multifid. Capsule 3- 
valved, 1-celled, dehiscent for half the length : 
seeds arillated on one side, crustaceous, reticul- 
ated : embryo slight ly curved in the midst of 
fleshy albumen : cotyledons plano-convex, acquir- 
ing the texture of leaves when germinating. 
Herbaceous plants, rarely suffruticose, with a simple or 
occasionally stellated pubescence. Leaves alternate, 
with the petiole in many species biglandulosc. Flowers 
