4-64 ARBORETUM ET FRUTICETUM BRITANNICUM. 



ii. Stems more slender, rambling, twiggy, and loose. Flowers 

 solitary, or *2 or 3 together. 



& 9. P. LA'XUS Schrad. The loose-growing Philadelphia, or Mock Orange, 



Identification. Schrad. Diss. Philad. ; Dec. Prod., 3. p. 206. ; Don's Mill., 2. p. 807. 

 Synonymes. P. humilis Hortul. ; P. pubescens I.odd. Cat. edit. 1836. 



Engravings. Schrad. Diss. Philad., ic. ; Bot. Heg., 1839, t. 39. ; and our Jig 830. from a plant in 

 the Horticultural Society's Garden. 



Spec. Char., fyc. Leaves oval-ovate and with a 

 long acuminate tip, toothed, pubescent with 

 hairs beneath. Flowers solitary, 2 or 3 together. 

 Lobes of the calyx very long, acuminate. Style 

 4-cleft. Stigmas about level with the stamens. 

 (Dec. Prod.) A low straggling shrub. North 

 America. Height 4ft. to 5ft., but covering 

 double that space upon the ground with its long 

 slender deep brown shoots. Introduced about 

 1830. Flowers white, most commonly solitary 

 and almost scentless. 



The leaves are smaller than is usual in the genus, 

 very sharp-pointed, with the toothing unusually 

 sharp ; the uppermost leaves become gradually 

 narrow, till those immediately below the flowers 

 are not unfrequently linear and entire. As this 

 species leafs early, the young shoots are apt to be 



killed by frost, and when this takes place no flowers are produced that season* 

 as it is from the ends of the lateral shoots that blossoms always appear in this 

 genus. (Sot. Reg.) 



fife 10. P. (L.) GRANDIFLO^RUS Wllld. The large-flowered Philadelphus, 

 or Mock Orange. 



Identification. Willd. Enum., 1. p. 511. ; Schrad. Diss. Philad. ; Dec. Prod., 3. p. 206. 



Synonymes. P. inod6rus Hortul. ; P. laxus Lodd. Cat. edit. 1836. 



Engravings. Guimp. Abb. Holz., t. 44. ; Schrad. Diss. Philad., ic. ; and our fig. 831. 



Spec. Char., %c. Epidermis of the branches of 

 a reddish brown colour. Leaves ovate, with a 

 long acuminate tip, denticulate, 3-nerved, hairy 

 upon the veins, and with groups of hairs in the 

 axils of the veins. Flowers about 3 together, or 

 solitary ; scentless. Lobes of the calyx long, 

 acuminate. Styles concrete into one, which ex- 

 tends beyond the stamens. Stigmas 4, linear. 

 (Dec, Prod. ) A vigorous-growing shrub. North 

 America. Height 10ft. to 12ft. Introduced in 

 1811. Flowers white; June and July. 



We have given this description and figure from 

 Schrader and Guimpel, because in 1837 there was a 

 plant in the Hort. Soc. Garden which answered to 

 it, and which differs from P. speciosus in the leaves being nearly entire. 



& 11. P. HIRSU V TUS Nutt. The hairy-leaved Philadelphus, or Mock Orange. 



Identification. Nutt. Gen. Am., 1. p. 301. ; Dec. Prod., 3. p. 2~6. ; Don's Mill., 2. p. 808. 

 Synonymes. P. villdsus Lodd. Cat. ; P. gracilis Lodd. Cat. 

 Engravings. Wats. Dend. Brit., t. 47. ; and our figs. 832, 833. 



Spec. Char., $c. Leaves oblong-ovate, acute, dentate, 5-nerved, hairy on both 

 surfaces, whitish on the under one. Flowers singly, or by threes. Styles 

 concrete to the tip. Stigmas undivided. (Dec. Prod.) A straggling sar- 

 mentose shrub. America, in Tennessee. Height 3 ft. to 5 ft., but spreading 



