26 BALFOUR—NEW SPECIES OF PRIMULA. 
This beautiful species belongs to a series of which materials 
for a complete analysis are still wanting, especially living plants. 
No one of the series is definitely in cultivation though some 
may Soon be so. Its immediate Chinese allies are P. argutidens, 
Franch., P. amethystina, Franch., P. brevifolia, Forrest, and P. 
silaensis, Franch. P. petrophyes, Balf. fil, may be an alpine 
microform of it. Then there are the Indian P. Kingiz, Watt 
and P. Gageana, Balf. fil. All these are purple-blue or claret 
flowered species. P. Faberi, Oliv. is the only yellow-flowered 
species of the series as yet known, and it is Chinese. 
P. amethystina, Pax * is a chimera and includes P. argutidens, 
Franch. and P. amethystina, Franch. The two species are 
distinct as Petitmengin ¢ has shown. 
A conspicuous feature in all the forms of the series is the 
cartilaginous margin of the glabrous somewhat glaucous leaf 
with sharp recurved teeth in the upper half. The umbel of 
more or less stalked flowers is secund. The nodding flowers 
and ampliate corolla limb recall the Soldanelloid Section, but in 
the foundation form of that section, and in the forms which 
without. question are co-phyletic, the leaves are pinnatisectly 
dentate, have no horny margin, and are more or less pubescent. 
\\y0\ Primula lhasaensis, Balf. fil. et W. W. Sm. 
% 
Farinosa epilosa rhizomate brevi crasso. Folia rosulata 
ad 7 cm. longa ad 2 cm. lata oblongo-spathulata acuta margine 
subcartilaginea inaequaliter denticulata dentibus hydathodo 
terminatis crassa supra punctata subtus plus minusve farinosa 
deorsum gradatim attenuata et integra petiolum brevem alatum 
vaginantem formantia. Scapus .validus strictus ad 16 cm. 
longus superne plus minusve farinosus umbellam 4—8-floram 
erens; bracteae lineari-subulatae ad 1.2 cm. longae basi 
subincrassatae pedicellis breviores ; pedicelli ad 2.5 cm. longi 
sparsim farinosi stricti erecti tenues ; anthopodium conspicuum 
disciforme. Calyx ad 1 cm. longus tubulosus 5-costatus inter- 
vallis pergamentaceis ultra medium fissus lobis a basi lanceolato- 
acuminatis hydathodo terminatis intus albo-farinosis. Corollae 
forsan violaceae tubus in flore brevistylo 1.6 cm. longus infra 
stamina anguste cylindricus supra stamina expansus extus 
efarinosus intus tenuiter rugosus fauce puberulus annuloque 
parvo instructus, limbi discus 1 mm. latus puberulus, lobi 5 mm. 
longi vel longiores obcuneati profunde bifidi. Stamina fila- 
mentis conspicuis antheris 2 mm. longis in flore brevistylo orem 
tubi corollini versus inserta antherarum apicibus 0.75 mm. ab an- 
nulo remotis in flore longistylo ad medium tubi corollini et supra 
* Pax, Monogr. Primul. in Engler’s Pflanzenr. (1905), 118. 
t Petitmengin in Bull. Soc. Sci. Nancy, sér. 3, viii (1907), 8. 
