202 



THE 



[vol. I 



Ijinceolnte, acuminate, cuncate at the base, 5-8 cm. long and 1.5 to 3 cm. 

 broad, on shoots to 10 cm. long and to 3.5 cm. broad, dentate with 4-8 teeth 

 on each side, or denticulate, rarely entire, glabrous above, hairy beneath 

 near the base and along the veins; petioles 4-8 ram. long, pubescent above 

 or nearly glabrous: flowers large, 5-G cm. across, in 3-9-flu\vered cymes or 

 occasionally solitary, or in 5-flowered racemes with bracted slender pedi- 

 cels to 1.5 cm. long, glabrous; calyx glabrous, its lobes about twice as long 

 as the tube, ovate-lanceolate to oblong-lanceolate, long-acuminate; petals 

 obovate; styles divided to the base, 1-1.3 cm. long, somewhat shorter or 

 nearly as long as the stamens, with small stigmas. 



As the type of this group of hybrids I have taken " Conquete " (Le- 

 moine. Cat. No. 155, viii. [1003]. —Fig. in Gartcnwelt, xvii. 102 [1913]) 

 raised by Lcmoine and distributed in 1903. To this group I refer also the fol- 

 lowing hyl)rids: " Banniere " (Lcmoine, Cat.Xo. 1C4, 24 [190G]),with ovate 

 leaves and semidouble flowers. — "Mer de Glace" (Lemoine, Cat. No. 173, 

 25 [1909]. — Fig. in Lemoine, Cat. No. 176, pi. [1910]. — Gartcnwelt 

 XVII. 102 [1913]); with double flowers according to Lemoine, though the 

 plant I have seen had single flowers. — " Norma " (Lcmoine, Cat. No. 173, 

 33 [1909]) similar to the preceding with single or dou]>le flowers — "Nuee 

 blanche " (T^moine, Cat. No. IGO, 20 [1905]) with the leaves sparingly pu- 

 bescent beneath; said to be a hybrid of P. microphyllm and P. ncpalcnsis, 

 but I can see no influence of P. nepalensh. — " Rosace " (Lemoine, Cat. No. 

 158, VIII. [1904]), similar to " Conquete," with double flowers according to 

 Lemoine, but the plants I ha^■e seen had single flowers. — " Voie lactee " (Le- 

 moine, Cat. No. 161, VII. [1905]. —Fig. in Garden, lxxxii. 267 [1918]. 



Jour. Hort. Soc. xxxvill. cxlv, fig. 117. [1912]. — Gardeners' Mag. lv. 554 

 1912), with single flowers, similar to "Conquete "— "Perle blanche" (Le- 

 moine, Cat. No. 146, XI. [1900]) with ovate, dentate- leaves sparingly pu- 

 bescent beneath and double flowers probably also belongs to this group, 

 tliough the calyx is slightly pubescent. 



X Philadelphus virguialis, nom. nov. (? P. Lemoinci or possibly P. 

 polyanthus X P. verrucosus plenus). 



Upright tall shrub; bark of last year's brandies brown, exfoliating; 



young branchlets glabrous: leaves ovate, acuminate, rounded or broadly 

 cuneate at the base, 3.5-6, on shoots to 8 cm. long, dentate or denticulate, 

 nearly glabrous a})ove, villous-pubescent beneath; petioles 0.5-1 cm. long, 

 pubescent: flowers about 5 cm. across, double or semidoul)le', in 5-7-flow- 

 ered racemes; pedicels 0.5-1 cm. long, pubescent, with or ^\itliout bractlets; 

 the lower ones occasionally longer and 3-flowercJ; calyx i)ul)escent, the 

 lobes ovate, somewhat longer than the tube; style much shorter than 

 the stamens, divided to the middle or nearly to the base, 6-8 mm. long, 

 with small stigmas. 



This group of hybrids is chiefly characterized by the ovate leaves, rather 

 densely villous beneath and by the double racemose flowers with pubescent 



alyx 



(Lei 



