180 CRAIB—PRIMULA DAVIDII AND ITS ALLIES. 
scape is always present—in many members of the petiolaris 
group the scape is so reduced as almost to justify its being 
regarded as undeveloped. Farini-potential hairs are present 
on all the species, but the development of farina is so scanty 
that one may apply the term efarinose to the group. One 
solitary fruiting specimen shows a candelabroid tendency in 
the peduncle bearing a lateral verticil and a terminal umbel 
of flowers. This is the only case so far noted of superposed 
umbels in the whole Petiolaris section. 
None of the species are at present in cultivation. Wilson 
succeeded in introducing plants which flowered and which were 
figured as P. ovalifolia,* Franch. This plant is evidently not 
the true P. ovalifolia but is apparently P. aequipila, Craib. 
From Forrest’s seed plants of P. coerulea were raised,+ but the 
species is no longer in cultivation, the plants having died before 
flowering. 
Up to the present the following species are known :— 
P. Davidii, Franchet in Bull. Soc. Bot. Fr., vol. xxxiii 
(1886), p. 66, et in Nuov. Arch. Mus. Par., Ser. 2, 
vol. x (1887), p. 56, t. 14, fig. A—collected by David 
in Moupin. 
P. ovalifolia, Franchet ll. cc., pp. 67 et 57—collected by 
David in Moupin. 
P. Esquirolii, Petitm. in Bull. Soc. Sci. Nancy, Sér. 3, vol. 
vili (1907), p. 16, et in Fedde, Rep. Nov. Sp., vol. ix, 
Pp. 240—collected in Kweichow by Esquirol and 
Martin. 
P. coerulea, G. Forrest in Notes Roy. Bot. Gard. Edin., 
vol. iv (1908), p. 221, t. xxxiv—collected by G. Forrest 
in Yunnan. 
P. hylophila, Balf. f. et Farrer in Notes Roy. Bot. Gard. 
Fdin., vol. ix (1916), p. 173—collected by Farrer and 
Purdom in Kansu. 
Examination of the specimens preserved in the Royal 
Botanic Gardens of Edinburgh and Kew has necessitated the 
establishment of six more species :— 
P. aequipila, Craib in Notes Roy. Bot. Gard. Edin., 
vol. xi (1919), p. 169. 
P. epilosa, Craib in Notes Roy. Bot. Gard. Edin., vol. xi 
(919), p. 171. : 
P. fagosa, Balf. f. et Craib in Notes Roy. Bot. Gard. Edin., 
vol. xi (1919), p. 172. 2 
* - Chron., Ser. 3, xxxviii, p. 62 (1905), supplem. illustr. 
t Balf. f. in Journ. Roy. Hort. Soc., xxxix, p. 147 (t9r3). 2. 
