1298 



PHILADELPHUS 



B Calyx pubescent oiitiide bark gray 

 pub^scens T isel (P latMlxus bchrad Pi 



matin 

 last J I 

 cent b 



rmi 



1749. Philadelphus 



white, scentless, lK-2 in. across. June, 

 July. Tennessee. B.R. 7:570 and Gn. 40, p. 289 (as P. 

 grandiftorus). B.R. 23:2003 and G.C. II. 16:81 (as P. 

 speciostia).— The figures quoted above do not represent 

 typical plants; they are probably partly hybrids of this 

 species with P. grandiflorus and inodorus, but the figure 

 accompanying the original description by Loiseleur in 

 Herbier gen. de I'amateur, Vol. IV, t. 208, agrees well 

 with wild plants from Tennessee. A dwarf form with 

 double fls., cult.as P. nivalis spectabilis flore plena, prob- 

 ably belongs to this species. P. pubeseens of Koch and 

 of Koehne is P. vemicosus; see supplementary list. 



Ciilyr glabrous outside: bark br 



grayi 



2. GoTdoni&nuB, Lindl. Shrub, to 12 ft., with grayish 

 brown branches : Ivs. broadly ovate to elliptic, coarsely 

 dentate, especially those of the young shoots, light 

 green, pubescent beneath, thin, lH-3 in. long: racemes 

 dense, 5-7-fld. : fls. pure white, scentless, 1M-I?i in. 

 across; petals oval-oblong: ovary half -superior. June, 

 July. Wash, to Ore. B.E. 25:32. Gn. 3, p. 233. 



3. Lfiwisi, Pursh. Upright shrub, to 8 ft. : bark of 

 branches dark or grayish brown, usually with numer- 

 ous horizontal cracks: Ivs. broadly ovate or elliptic- 

 ovate, entire or sparingly dentate, glabrous or some- 

 what hairy beneath, thickish at maturity, l]4-3 in. long: 

 racemes short and dense, 5-9-fld.: fls. short-stalked, 

 1-lM in. across, scentless. June, July. Brit. Colo, to 

 Calif. 



4. Satsiimi, Sieb. (P. Tokohdmce, Hort.). Shrub, to 

 8 ft., erect: branches of last year with grayish brown 

 bark, usually marked with whitish, longitudinal fis- 

 sures: Ivs. ovate, long-acuminate, dentate or sometimes 

 entire, almost glabrous, 3-6 in. long: racemes loose, 

 erect, 7-9-fld. : fls. about 1 in. across, slightly fragrant. 

 May, June. Japan. 



PHILADELPHUS 



AA. Bark of last year's branches peeling off in thin 



flakes, brown. 



B. Fls. in many-fid. panicles, but sometimes racemose 



on weaker branches. 



5. Calilamicus, Benth. Upright shrub, to 8 ft., with 

 brown branches: Ivs. ovate, with few teeth or almost 

 entire, glabrous or somewhat pubescent beneath, thick- 

 scentless; petals oblong. June, July. Wash, to Calif. 

 -Similar in habit to P. Lewisi, to which it is usually 

 referred as a variety. 



BB. /7s. in 5-9-fld. racemes, rarely S. 

 c. JjVS. glabrous or nearly so beneath, ovate-lanceo- 

 late : pedicels glabrous. 



6. Fekin6n8is, Rupr. (P. coronArius, var. PekinSnsis, 

 Maxim.). Uprisrht shrnh. to 5 ft.: Ivs. ovate-lanceo- 

 Ute, acumin;iii'. clciitii-nlMtP. thickish at maturity, VA- 

 3 in. long; i>'!i..l.- j.iM[ili--h : racemes short and dense, 

 usually ,")-ll iM.: tK. I'., in. across, slightly fragrant; 

 style dividt-'l "lily at tin- apex. May, June. Mongolia, 

 N. China. — Dense, upright, but rather low, free-flower- 

 ing shrub. 



7. F41coneri, Sarg. Shrub, to 8 ft., with slender, 



li-iiiirulatr. l',;-:i ill. long, thickish at maturity: fls. 3- 

 7, >li iiili 1 jM,l 1,1 lied, fragrant, pure white, about IH in. 

 acT'i--; (mI\ \ liil.rs lanceolate; petals oblong, acute; 

 ■itvlf iiiiicli l.,iii.'i T than stamens, deeply divided. June. 

 Uriniii uiikiiowu ; probablv Japanese. G.F. 8:497. 

 M.D.G. 1899:2.11. Gng. 8:340. -Very graceful shrub, 

 wide-spreading. 



cc. Lvs. more or less pubescent beneath, usually 



a, Linn. Fig. 1748, 1479. Shrub, to 10 ft., 

 with upright branches: lvs. ovate to ovate-elliptic, usu- 

 ally acute at both ends, denticulate, sparingly pubes- 

 cent beneath, 2-1 in. long: fls. 5-9 in rather dense ra- 

 cemes, creamy white, very fragrant, on rather short 

 pubescent pedicels; petals oval; style divided about one- 

 half. May, June. S. E. Eu., Caucasus. B.B.2:186.-Thi3 

 is the common Mock Orange, less showy than the follow- 

 ing species and of somewhat stiff habit, but deliciously 

 fragrant. There are several vars. in cultivation. Var. 

 arginteo-margin&ta, Hort. Lvs. edged creamy white, 

 and other variegated forms. Var. atireuB, Hort. Foli- 

 age yellow. Var. nilnUB, Schrad. Dwarf, compact shrub, 

 with dark green foliage; flowers but rarely. Var. sa- 

 licifdlia, Hort. Lvs. lanceolate or linear-lanceolate. 

 There are also several vars. with double fls., as vars. 

 dianthifldras, multinorus planus, primoleeildruB (R.H. 

 l.sTi), |>. .10.')), rosselldruB, mostly of dwarfer habit than 

 thi- typ.'. 



0. Z^yheri, Schrad. Probably hybrid of the preceding 

 aiul /*. inodorus: lower than P. coronarius and more 

 spreading, with sometimes arching branches : lvs. 

 ovate, usually rounded at the base: fls. usually 5, pure 

 white, slightly fragrant or scentless, lK-1/4 in. broad; 

 style sometimes longer than stamens, divided one-half 

 or less. June. Of garden origin. The difl'erent forms 

 of P. Zeyheri are, besides those of the following hy- 

 brid, the most showy of the genus, bearing the large, 

 pure white fls. in great profusion along the branches. 

 P. speciosissimus, Hort., belongs here. 



10. LemAinei, Lemoine. Hybrid of P. microphyllus 

 with P. coronarius, of varying'habit : lvs. ovate to ovate- 

 elliptic or ovate-lanceolate, visually pubescent beneath 

 and %-2i4 in. long: fls. 3-7 in short racemes, very 

 sweet-scented ; petals oval to oblong, mostly dentate 

 at the apex. G.F. 2:617.-Some of the best forms of 

 this hybrid are Avalanche. Graceful shrub, with slen- 

 der arching branches, covered almost the whole length 

 with showy white fls. G.C. III. 21:89. M.D.G. It96:293. 

 Gerbe de Neige is similar, but the fls. are larger. Boule 

 I'argent has large, double fls. and the habit of P. coro- 

 narius. G.C. III. 18:19 and 2:!. svippl. L'K May. Can- 

 dMabre. Low shrub, with upriL.'lit l>iaii.-li.s cv. r.d « lib 

 large fls. M.D.G. 1896:294. Var. er^cua. rpriulit, to 

 5 ft., covered with white fls. Mont Blanc is similar in 

 haljit, but fls. larger and showier. 



