CHAP, xli: 



ROSA'CEM i'^YUUS. 



915 



There being no varieties, it 



gated exactly in the same manner as P. J'ria. 

 does not require to be continued by grafting. 



Statistics. In the environs of London, at Syon, it is 30 ft. high ; in the Fulham Nursery, 40 years 

 years planted, it is 30 ft. high ; in Staffordshire, at Arley Hall, there is the line specimen mentioned 

 ahove, which is 54§ ft. high]; in Wiltshire, at Lonjjleat, 65 years planted, it is 35 ft. high. In France, 

 at Laye, near Fassey, 50 years planted, it is 50 ft. high ; at Nantes, in the nursery of M. l)e Nerrieres, 

 and in the neighbouring woods, it is 50 ft. high. In Saxony, at Worlitz, 44 years planted, it is 30 ft. 

 high. In Austria, near Vienna, at Briick on the Leytha, 40 years planted, it is 30 ft. high. 



App. i. Other Species ofVyrus belonging to tin 

 Tor miliaria. 



Section 



P. rivuluris Doug, in Hook. 

 Ft. Bar. Amer., 1. p. 203. t. 

 68., and our Jigs. 642. and 

 043., is a small tree, with 

 ovate or, entire subtrilobate 

 leaves, pubescent under- 

 neath ; a native of Nootka 

 Sound, and other partsof the 

 north-west coast of North 

 America. The wood is em- 

 ployed for making wedges ; 

 and the fruit is used as an 

 article of food, under the 

 name of pow-itch, by the 

 Chenook Indians. It flowers 

 in April and May. It is 

 much to be desired that this species of Pyrus were introduced into 

 Britain ; since it seems the only one of the section which is indigenous 

 to the western hemisphere. Judging from the engravings in Dr. Hooper's 

 work (from which our fig. 642. has been reduced to our usual scale of 

 2 in. to 1 ft., andfig. 643. has been copied of the natural size), it is a very 

 handsome species. 



§ v. Eridlobus 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 unbranched pedicels, disposed in corymbs. {Bee. Prod., ii. p. 636.) 



It 25. P. triloba^ta Dec. The three-lobed-fcawd Pear Tree. 



Identification. Dec. Prod., 2. p. 636. ; Don's Mill , 2. p. 648. 



Synonyme. Crataegus trilobata Labill. Bee., 4. p. 15. t. 10., Poir. Suppl., 1. p. 291. 



Engraving. Labill. Dec, 4. 1. 10. 



Spec. Char., fyc. Leaves glabrous, palmately lobed ; the middle lobe 3-lobed ; the side lobes, in many 

 instances, 2-lobed ; the secondary lobes serrated. {Bee. Prod-, ii. p. 636.) A tree, a native of 

 Mount Lebanon ; growing to the height of 20 ft. ; said to have been introduced in 1810 ; but of 

 which we have not seen a plant 



§ vi. Sorbus Dec. 



Sect. Char.y cfc. Petals spreading, flat. Styles 2 — 5. Pome globose, or top- 

 shaped. Leaves impari-pinnate, or pinnately cut. Flowers in branched 

 corymbs. (Dec. Prod., ii. p. 636.) Trees, growing to the height of from 

 20 ft. to 40 ft. or upwards. Natives of Europe, North America, or the 

 Himalayas. In this, as in the preceding section, there is a very great con- 

 fusion of names. 



¥ 26. P. auricula^ta Dec. The auricled Service Tree. 



Identifications. Dec. Prod., 2. p. 636. ; Don's Mill., 2. p. 648. 



Synonyme. Sorbus auriculata Pers. Syn., 2. p. 39. 



Spec. Char., $c. Leaves of 3 pairs of leaflets, and an odd one, hirsute beneath ; 2 — 4 of the lowest 

 leaflets distinct, the rest connate with the odd one into an ovate one, which is crenate. Corymb 

 compact. {Bee. Prod., ii. p. 636.) A native of Egypt, and supposed by De Candolle to be only a 

 variety of P. pinnatifida. It is said to have been introduced in 1800; but we have not seen the 

 plant. 



¥ 27. P. pinnati'fida Ehrh. The pinnatind-Z^wrf Service Tree. 



Identification. Ehrh. Beitr., 6. p. 93. ; Smith in Eng. Bot., t. 2331. ; Dec. Prod., 2. p. 636. 

 Synonymes. Sorbus hybrida Lin. Bee., 6. ; Pyrus hybrida Smith Fl. Brit., not of Willd. ; the 



Bastard Service Tree. 

 Engravings. Eng. Bot, t. 2331. ; and our plate in Vol. II. 



Spec. Char., eye. Leaves pinnately cloven, or cut, or almost pinnate at the 

 base. The petiole on the under side, and the peduncles, hoarily tomentose. 



3 p 3 



