ROSACEiE. 113 



church, CO. Dublin, belong to this species ; as, however, it is likely 

 to be a casual introduction, it is considered best for the present to 

 exclude it until its present existence in Ireland be ascertained. 



CORONILLA VARIA. Linn. 



Reported to have been found at Berry Head and Linton, 

 Devonshire, and also in the Lake district ; but these statements 

 require confirmation before so conspicuous a plant can be admitted 

 into the British list. 



OEDER XXVI.— ROSACEA. 



Herbs, shrubs, or trees, with alternate simple or compound 

 leaves. Stipules usually conspicuous, free or more or less 

 adhering at the base to the petiole. Flowers regular, often yellow 

 or white, solitary, or in simple or compound corymbose cymes 

 or panicles, more rarely in racemes, spikes, heads, or umbels. In- 

 florescence generally terminal. Sepals 5, more rarely 4 or 3 (or 

 double these numbers by the addition of an epicalyx exterior to 

 the calyx), more or less united at the base, valvate or imbricated 

 in aestivation, the odd one superior or turned towards the axis of 

 the inflorescence. Petals 5, more rarely 4, perigynous, caducous, 

 sometimes absent. Stamens indefinite, rarely definite, distinct, 

 perigynous, inserted immediately within the petals. Ovary free 

 from the calyx, consisting of 1 carpel, or of few or numerous 

 distinct ones ; or of 2 to 5 united to each other and adhering 

 to the calyx-tube. Ovules 1, 2, or several, anatropous. Styles 

 lateral or terminal, free, rarely united. Fruit consisting of achenes 

 or follicles, sometimes a drupe or a pome. Seeds 1 or more; 

 albumen none ; embryo nearly straight. 



Sub-Order I.— AMYGDALE^. 



Trees or shrubs, with simple undivided leaves, having stipules 

 not adhering to the petiole and persistent only on the barren shoots, 

 deciduous on the flowering ones. Calyx inferior (free from th© 

 ovary), splitting in a cu'cumcissile manner, and the greater portion 

 deciduous. Petals white or pink. Stamens indefinite. Carpels 

 solitary, containing 2 ovules. Style terminal. Fruit a drupe, with 



VOL. III. Q 



