The Cultivated Native Plums aud Cherries. 



55 



C. The Miner Group. — (Prunus liortulana var. Mineri). TMs 

 group includes a few anomalous varieties which, appear to be 

 intermediate between Prunus hortulana and P. Americana. They 

 may be an off-shoot of P. hortulana, or it is possible that they 

 constitute a distinct species. The Miner is particularly W(?ll 

 marked, but there are others which it is somewhat difficult to 

 separate from P. hoi-tulana. The group differs from the species 

 by the dull and comparatively thick leaves which are conspicu- 

 ously veiny below and irregularly coarsely toothed and more or 

 less obovate in outline, by a late, very firm fruit and by a more 

 or less smooth and Americana-like stone. Fig. 4 is an excellent 

 illustration of the under surf ace of a leaf of this gi'oup, and Fig. 5 

 shows the general habit. I am not able to designate the range 

 of the wild plant, but it appears to occur in Illinois (and perhaps 

 Indiana), Missouri, Tennessee, and perhaps in Arkansas. 



63. Clinton (Fig. 4). — Fruit large, round, duU red, skin medium 

 thick; cling; the stone short and broad and scarcely X'oii^ted, 



Figure 4.— Leaf of Clinton, full size. 



nearly smooth; flowers medium; leaves (see cut) elliptic to elliptic- 

 obovate, rather prominently pointed; the stalks glandular. Mid- 

 season, ripening several days before Miner. Thought by some tL> 

 be the same as Miner, but the leaves, at least, appear to be 

 different. 



64. Forest Eose. — Large to very large, voand, dull red, sldn 

 medium thick; stone cling, broad and comparatively flat, sharp 



