Prunus.'] ICOSANDRIA — MONOGYNIA. 195 



13. Geuat. Cal. 10-cleft, alternate segments minute. Pet. 5. 

 Pericarps with long geniculated awns. Receptacle elongated. — 

 Nat. Ord. Rosacea, Juss. — Named from yroM, to yield an agree- 

 able flavour. The roots of G. urhanum are aromatic. 



14. Dryas. Cal. 8_10-cleft, its segments equal. Pet. 5—8. 

 Pericarps with long feathery awns. — Nat. Ord. Rosacea, Juss. 

 — Named ^^xji;, the oak, from a distant similarity between their 

 leaves. 



ICOSANDRIA— MONOGYNIA. 



1. Prunus. Linn. Plum and Cherry. 



* Fruit covered with bloom. Young leaves convolute. 



1. P. *domestica, L. (wild Plum-tree); peduncles solitary 

 or two together, leaves ovato-lanceolate somewhat downy be- 

 neath, branches without spines. PJ. Bot. t. 1783. 



Woods and hedges, occasionall}'. Fl. Maj. fj . — The original stock 

 of our garden plum, but probably a var. of the following; indeed Mr 

 Wilson is disposed to unite them and P. spinosa, as forming only one 

 species. 



2. P. insititia, L. (ivild Bullace-tree) ; peduncles in pairs 

 leaves ovato-lanceolate downy beneath, branches ending in a 

 spine. E. Bot. ^.841. 



Woods and hedges. FL May. Tj . — A small tree, bearing black, glo- 

 bular ^/mzV, with a fine bloom. 



3. v. spinosa, Ij. (Black-thorn or Sloe) ; peduncles (mostly) 

 solitary, leaves elliptico-lanceolate somewhat downy beneatii, 

 branches very spinous. E. Bot. t. 842. 



Hedges and coppices, frequent. FL Apr. May. Ij . — It is difficult ia 

 few words to distinguish this species from the last. It is much smaller 

 in all its parts, and the branches are more crooked and spinous. In the 

 P. insititia, the leaves are rather considerably advanced at the time of 

 the blossoms' appearing ; in this, {hejiowers are generally past before 

 the leaves appear. Fiuii small, very austere ; used to adulterate Port 

 wine ; as the leaves are to mix with lea. 



** Bruit without bloom. Young leaves conduplicate. 



4. P. Pddus, L. (Bird- Cherry) ; flowers in racemes, leaves 

 deciduous obovate or oval glabrous with two glands at the sum- 

 mit of the footstalk. E. Bot. t. \QQQ.—Cerasus, DC. 



Woods and coppices, frequent ; especially in the north. FL May. Tj . 

 —A small tree, with acute, doubly serrated leaves. Flowers white. 

 Drupes small, black ; jiut rugose. 



5. P. Cerasns, L. (wild Cherry) ; flowei'S in nearly sessile 

 umbels, leaves ovato-lanceolate somewhat downy beneath. £*« 

 Bot. t. 706. — Cerasiis Avium, Moinch, 



Woods and hedges. FL May. T? . — The origin of the garden Cherry. 



