CHAP. XL1I. 



7 >V YRUS. 



915 



gated exactly in the same manner as P. /I v ria. There being no varieties, it 

 lines not require to be continued by grafting. 



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



years planted, it is 30 ft. high ; in Staffordshire, at Alley Hall, tin-re is the tine specimen mentioned 



above, which is 54Jft. high'; in Wiltshire, at I.on^leat, (l~> years planted, it is 3. r > ft. high. In trance, 



: rs planted, it is 50 ft. high ; at Nantes, in the nursery of M. De Nerrieres, 



and in the neighbouring woods, it is ."ii> ft. high. In Saxony, at \Vc,rlitz, 44 years planted, it is oO it. 

 high. In Austria, near Vienna, at Briick on the Leytha, 40 years punted, it is Mil. high. 



App. i. Other Species qfPyrus belonging to the Section 

 Tormindria. 



P. rfvularis Doug, in Hook. ^^% k 



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

 68., and our Jigs. 642. and 

 04-3., is a small tree, with 

 ovate or, entire subtrilobate 

 : -aves, 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 

 C'henook 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 Jig. 642. has been reduced to our usual scale of 

 2 in. to 1 ft., and Jig. 643. Has been copied of the natural size), it is a very 

 handsome species. 



v. Eriolobus Dec. 



tor. 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 Jobed, glabrous. Flowers 

 upon unbranched pedicels, disposed in corymbs. (Dec. Prod., ii. p. 636.) 



25. P. TRILOBA'TA Dec. The three-lobed-leaved Pear Tree. 



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



Si/ntmymc. frata? v gus trilob'ita Labill. Dec., 4. p. 15. t 10., Pair. Suppl., 1. p. 291. 



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



Spec. Char., $c. Leaves glabrous, palmately lobed ; the middle lobe 3-lobed ; the side lol>es, in many 

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

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

 which we have not seen a plant. 



vi. Sorbus Dec. 



Sect. Char., $c. 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 

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

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

 fusion of names. 



26. P. AURICULA N TA Dec. The auricled Service Tree. 



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



Synonyme. Sorbus auriculata Pcrs. %., 2. p. 39. 



.">/*< . 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. (Dec. Prod., ii. p. 636.) A native of Egypt, and supposed by De Candolle to be only a 

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

 plant. 



27. P. PINXATI'FIDA FJirh. The pinnatifid-fcawd Service Tree. 



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

 Si/noni/nu's. .S'orbus hjtorida Lin. Dec., 6. ; Pyrus hj'brida Smith Fl. Brit., not of Willd. ; the 



Bastard Service Tree. 

 I-'.n Cravings. Eng. Bot, t. 2331. ; and our plate in Vol. II. 



. C/tfrr., $c. Leaves pinnately cloven, or cut, or almost pinnate at the 

 base. The petiole on the tinder .side, ami the peduncles, hoarily tomentose. 



