1298 



PHILADF.I.PHUS 



PHILADELPHUS 



A. Bark Of last year's brnriclie.i vot preliiig off: fls. in 

 racemes. 



E. Cahjx pubescent outside: bark gray. 



1. pubfescens, Loise!.(P. Za?4«Zi«s, Schrad. P.grandi- 

 nOnis. var. ftorihihuliis, A. Gray). Shrub, to 20 ft. high: 

 mature brandies of this year yellowish brown, those of 

 last year light gray: Ivs. "broadly ovate, dentate, pubes- 

 cent beneath. 2-4 in. long: racemes rather loose, 5-11- 



Kj. ^ 



M^^ 









' '\!' a^ ~p^¥^' 



17:9. Philadelphus coronarius. 



fld. : fls. creamy white, scentless, lK-2 in. across. June, 

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

 grandiflorus). B.R. 23:2003 and G.C. II. 1G:81 (as P. 

 spec iosus). — The figures quoted above do not represent 

 typical plants; they are probably partly hybrids of this 

 species with P.qrandiflotms and rHorfone.-J, butthe figure 

 accompanying the original <!escription by Loiseleur in 

 Herbier gen. de Tamatour, Vol. IV, t. 208, agrees well 

 with wild plants from Tennessee. A dwarf foi-m with 

 double fls., cult. as P. nivalis spectahiUa flore pleno, prob- 

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

 of Koehne is P. verrucosus; see supplementary list. 



BB. CahjT 



fhrous outside: hark 

 brown. 



ffratfish 



2. Gordoni&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, 1^2-3 in. long: racemes 

 dense, 5-7-fld.: fls. pure white, scentless, iK-lK in. 

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

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



3. L6wi3i, 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, 13^-3 in. long: 

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

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

 Calif. 



4. Satsftmi, Sieb. (P. ToJcohdnm, Hort.). Shrub, to 

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

 bark, usually marked with whitish, longitudinal fis- 

 sures: Ivs. ovate, long-acurainate, 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. 



Wnsli. T<. Calif. 

 L'h it is usually 



ely S. 



AA. Bark of hi.it year's branches peelimj off in thin 



flakes, brown. 



B. Fts. iu muiiy-fld. panicles, but sometimes racemose 



on weaker brunches. 



5. Califdmicus, Benth. ITpriglit shrub, to 8 ft., with 

 brown branches: Ivs. ..vatf, witli fiw tfith or ahlio.st 

 entire, glabrous or siiinrw li:it [Milirsc'cni li,.iii.:itli, tbii'k- 

 ish at maturity, l',--"_ in. I.nm' tls. ',-1 m. iioro.s.s, 

 scentless; petals o\A<>ui;. -Iiiiif, .Iiih- 

 — Similar in habit to P. Lewisi, to w 

 referred as a variety. 



BB. Ji'ls. in 5-9-fld. racemes 

 c. Lcs. glabrous or nearly so beneath, ocaie-lanceo- 

 late: pedicels glabrous. 



6. Pekin^nsis, Rupr. (P. cnmvririufi.xav. rrkiiit'ii.ii.i. 

 Maxim.). Upright slirul>, t" .'. ii.: Iv.s. ..\ at..|;iiici-.i- 

 late, acumiuatis <k'nti^-ul:il('. ihjckish ai in;iiiifir\-. ]'..- 

 .3 in. long; petioles pur].lish: ra..Mi.s sli..]! and '.liii>e, 

 usually 5-n-fld.: fls. 1,';, in. across, slightly fragrant; 

 style divided only at the apex. May, June. Mongolia, 

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

 ing shrub. 



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



iichuig br inches : Ivs. ovate-lanceolate, acuminate, 



(icnti 111 iti lK-3 in. long, thickish at mat\irity : fls. 3- 



1 I I I I I dicelled, fragrant, pure- wliite. about 1}4 in. 



I hx lobes lanceolati' ; |iitals oblong, acute; 



si\l iini h longer than stamens, deeply divided. June. 

 Oiigni unknown; probal)lv Japanese. G.F. 8:497. 

 MD& 1890 2.11. Gng. 8:;i4n.-Very graceful shrub, 

 wide spreadmg. 



cc. Br 



or less pubescent beneath, visually 



8. COron4rius, Linn. Fig. 1748, 1479. Shrub, to 10 ft., 

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

 ally acute at both ends, denticulate, sparingly pubes- 

 cent beneath, 2—i in. long: fl.s, 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. B. En., Caucasus. B.B. 2:186. -This 

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

 ing spiM'ies ami of somewhat stiff habit, but deliciously 

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

 arg^nteo-marginata, Hort. Lvs. edged creamy white, 

 and other variegated forms. Var. aiireus, Hort. foli- 

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

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

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

 Tliere are also several Viirs. with double fis., as vars. 

 dianthifldras, multinorus planus, primulae!16rus (K.H. 

 lH7n, p. :tO,-|), rosaeflbrus, mostly of dwarfer habit than 

 the type. 



9. ZSyheri, Schrad. Probably hybrid of the preceding 

 and J*, 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, \%-\% in. broad; 

 style sometimes longer than stamens, divided one-half 

 or less. June. Of garden origin. The different forn.s 

 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. Lem6iiiei, Lemoine. Hybrid of P. microphyllus 

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

 elliptic or ovate-lanceolate, usually pubescent beneath 

 and %-2% 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. 1896:293. 

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

 I'argent lias large, double fls. and the habit of P. eon/- 

 narius. G.C. 111. 18:19 and 23, suppl. 28 May. Can- 

 d^labre. Low shrub, with upright branches covered with 

 large fls. M.D.G. 1896:294. Var. erectus. Upright, to 

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

 habit, but fls. larger and showier. 



