been widely distributed under its name. S. persica has never been known to 
bear seeds and is now believed to be a hybrid. 
j 
(For forms of S. persica, see Mrs. McKelvey’s monograph, The Lilac, pages 467 to 468.) 
S. PINETORUM —Collected by George Forrest in the province of Yunnan, 
China. There is considerable doubt as to whether or not this is a distinct 
species. Further information would be desirable before classifying this 
Lilac. Not in cultivation. 
S. PINNA TI FOLIA —(Pinnate Lilac) — Discovered in western China by 
E. H. Wilson in 1904. This is a very rare and most unusual Lilac with pin- 
nately divided leaves and small clusters of white flowers. Its foliage is not 
unlike that of some Rose species. 
S. POT AN IN I —Discovered in 1885 by the Russian explorer Potanin, in 
the province of Kansu, China. It was found later by E. H. Wilson in the 
province of Szechwan and by George Forrest in Yunnan. As there are no 
plants of this species in cultivation in this country, our knowledge of it is 
rather meager. 
S. PUBESCENS —(Ftairy Lilac) — A very beautiful species from the moun¬ 
tains near Peiping. Its slender, erect branches form a shrub of remarkable 
symmetry; there is an airy grace about its blooms which literally cover the 
plant from the ground up; and its dainty blossoms, long-tubed and star-like, 
possess an exquisite fragrance of which Charles Sargent says, “For its 
fragrance, which is more pungent and delightful than that of any other 
Lilac, Syringa pubescens should find a place in every northern garden.” The 
flowers are lavender-lilac with violet anthers and come in broad panicles; 
the leaves are small and hairy. Because of the difficulties of propagation, 
this Lilac is one of the rarest in cultivation.—See illustration p. 17. 
S. REFLEX A —(Nodding Lilac)—See illustration p. 6 and description p. 7. 
S. REF LEX A f. ALBA —See description, p. 7. 
S. RUGULOSA —Collected in the mountains of Yunnan, China, by E. E. 
Maire, in 1914. The flowers have been described as both white and rose- 
violet. This species is not in cultivation. 
S. SWEGINZOWI —(Chengtu Lilac)—Although this species had been 
previously reported, we owe its introduction here to the late E. H. Wilson, 
who found it in the Tibetan borderlands in 1904. S. szveginzozvi is a broad, 
upright-growing shrub of good habit. It blossoms so profusely that its 
slender, twiggy branches are curved downward by the slightly fragrant, 
. 20 . 
