156 
PRUNUS prostrata. 
Birch-leaved Mountain Plum. 
ICOSANDRIA MONOGYNIA. 
Nat. ord. Rosackx. Jussieu gen. 834. 
Div. FII. Germ. unicum superum monostylum. Nux mono- ait 
disperma, nuda aut swpius drupacea. Arbores aut frutices, AMYG« 
DALEE. 
PRUNUS. Suprà vol. 1. fol. 97. 
P. prostrata, pedunculis geminis, foliis ovatis inciso-serratis eglandulosis 
Subtüs tomentoso-albicantibus, caule prostrato. Labillard. syr. 15. 
t. 6. . 
Prunus prostrata, Willd. sp. pl. 2. 997. Smith prodr. ft: grat. 1. 840. 
. Hort. Kew. ed. 2. 3. 199. 
Amygdali incanz, var. - Pallas ross. 1. 33. fab. 7 ; unicê tamen quoad 
Jiguram à sinistris tabule; alie ambe enim sunt reverâ Amygdali 
incane. | 
Prunus cretica montana minima humifusa, flore suave rubente. Tournef. 
cor. 45. i 
Frutex humilis, ramosior, ramis sepiüs deflexo-prostratis, cortice nig 
Suscescente glabro. Folia ovato-rotunda, utroque fine attenuata, eglandulosa, 
nervosa, serrata," suprà willosiuscula, subtùs tomentoso-albicantia, tertiam 
Nnciee partem circitèr longa, brevissimê petiolata : stipulæ parvulæ lanceolata. 
Flores subgemini, subsessiles, axillares, viz eequantes | » roseo-rabentes, 
Cal. tubulosus, 5:fidus, extús villosus, segmentis siellatis subcoloratis lanceo- 
tato-oblongis, 2-8-plô angustioribus pelalis, intàs albo-barbatis. Pet. rosacea, 
subrotunda, ungue brevissimo, viz longiores segmentis calycinis, Stam. 20-24 
subexserta, erecta, calyci inserta serie alterne duplici: anth. peltata, rotunda, 
Jlavescentes, inflexa. Germ. viride, ellipticum, compressum, submudum : 
stylus exsuperans antheras, filiformis, ` strictus, rubidus, infernê lanatus ; 
stigma unilaterale, obliquum, lobiformi-dilatatum, concavum. Drupa (di- 
cente Labillardiére) ovata, rubra, pulpá. perpaucá obducta: nux ovata, 
suturis vix prominulis. 
Looking at the blossom, we should have thought this 
species had ranked under AMYGDALUS. , But the limits be- 
tween that genus and Prunus are decided by the stone of 
the fruit; the shell of this in the first genus is punctured at 
the outer surface by numerous small holes, nearly as fine as 
pores; a feature which is not found in the latter, the s el 1 
of which is distinguished by the prominent sutures of the 
margin. And those who have had the opportunity of ex- 
amining the fruit of our plant, have found it ta belong ta 
Prunus. 
VOL. 11, 9 
