n 
NEW SYLVA 
or laciniate calyx must be compared, and per- 
haps are akin ,or form another Genus near this: 
Cr. parvifolia is nearest, but is thorny with va- 
riable leaves, solitary fleshy fruits, with 5 or 6 
laciniate sepals, reflexed oblong neither ner- 
vose nor acuminate. Cr. tomentosa of the 
South is a different sp. Cr . pyrifolia has co- 
rymbs and 3 styles only. I shall return on 
these in my monograph of the Pomaceous 
tribe, 
502. X. obovatum Raf. Autikon. Branches 
round inerme pnbescent above, leaves subses- 
sile obovate unequally serrate, base entire, end 
acute, lucid above, puberulent beneath ; pedun- 
cles terminal pubescent commonly geminate, 
bracts sessile lanceolate dentate, sepals spread- 
ing ovate lanceolate acuminate nervose serrate 
puberulent, fruit globose semirugose — a small 
shrub hardly 2 feet high, flowers white blossom- 
ing in June, fruit redish rather large. Found 
on the summit of the Alleghany Mts. in Mary- 
land only twice in June and October 1818. 
Seen no where else, probably growing also fur- 
ther South in the Apalachian Mts. of Virginia. 
503. NESTRONIA Raf. Dioical. male fl. 
calix campanulate quadrifid, segments ovate 
obtuse spreading. Petals none. Stamens 4, 
inserted at the summit of the tube, opposite to 
segments but shorter, filaments linear flat, an- 
thers oval bilocular dehiscence pubescent. Ovary 
totaly lacking. Fern. fl. . . Fruit monosperm 
Drupe ? Shrub with opposite leaves , and 
multijlore peduncles — singular new Genus, the 
name is derived from Knestron greek name of 
Daphne, since although the female plant is 
lacking, I have little doubt by the free calix 
that it belongs to the Daphnidia family and has 
