XXVI. ROSA^CEJEl PY X RUS- 



437 



dried, 48 Ib. 8 oz. It is employed for all the different purposes to which that 

 of P. A^ria, is applicable, and is considered rather preferable as fuel, and for 

 charcoal. The fruit is brought to market both in England and France ; and, 

 when in a state of incipient decay, it eats somewhat like that of a medlar. 

 As an ornamental tree, its large green buds strongly recommend it in the 

 winter time, as its fine large-lobed leaves do in the summer, and its large and 

 numerous clusters of rich brown fruit do in autumn. It will grow in a soil 

 not poorer, but more tenacious and moist, than what is suitable for P. A'riii ; 

 and it requires a sheltered situation. It seems more liable to the attacks of 

 insects than that species, and does not thrive so well in the neighbourhood of 

 London. It is propagated exactly in the same manner as P. A^ria. There 

 being no varieties, it dees not require to be continued by grafting. 



25. P. RIVULA^RIS Dougl. The River-side Wild Service Tree. 



Identification. Dougl. MS. Hook. Fl. Bor. Amer., 1. p. 203.; Don's Mill, 2. p. 647. 

 Sijnonyme. Pow-itch, the name of the fruit in the language of the Chenook tribe of Indians. 

 Engravings. Hook. Fl. Bor. Amer., t. 68. ; and our figs. 786. and 787. 



Spec. Char., Sfc. Leaves 

 ovate, entire, and angu- 

 lar, somewhat 3-lobed, ra- 

 ther acuminated, acutely 

 serrated, pubescent be- 

 neath. Corymbs terminal, 

 simple. Calyces hairy, and 

 densely tomentose inside. 

 Styles 3 4, connected 

 at the base. (Don's Mill.) 

 A low deciduous tree. 

 North-west coast of 

 North America, at Nootka 

 Sound, and other places. 

 Height 15 ft. to 20 ft. 

 Introduced in 1836. 

 Flowers white ; April and 

 May. Fruit small, subglobose, red or yellow ; ripe ?. 

 The fruit is used as an article of food, and the wood is employed for making 



wedges, and is so hard as to be susceptible of a fine polish. Horticultural 



Society's Garden. 



v. Eriolobus Dec. 



Sect. Char. Petals spreading, flat, with 

 short claws, and with about 3 teeth at 

 the tip. Styles 5, long ; at the base very 

 hairy, and somewhat connected. Pome 

 globose, glabrous, crowned with the 

 lobes of the calyx, which are tomentose 

 upon both surfaces. Leaves palmately 

 lobed, glabrous. Flowers upon un- 

 branched pedicels, disposed in corymbs. 

 (Dec. Prod., ii. p. 636.) 



26. P. TRILOBA^TA Dec. The three- 

 lobed-lcaved Pear Tree. 



Identification. Dec. Prod., 2, p. 636.; Don's Mill., 2 



p. 648. 

 Synonume. Cratae^gus trilobSta Labill. Dec. 4. p. 15. 



t.10., Pair. Suppl. \. p. 291. 

 Engravings. Labill. Dec., 4. t. 10. ; and our fig. 789. 



Spec. Char. t $c. Leaves glabrous, palmately 



F F 3 





787. P. rivu&ris. 



788. P. tri!*t,ita. 



