62 DUNN—PRIMULA BELLIDIFOLIA, KING, 
mistaken for nearly allied species. A careful study of this 
should be made when these species are better known in cultiva- 
tion, in order to throw light upon the subject. . 
KEY TO THE SPECIES. 
Calyx teeth acute 1. Giraldiana. 
Calyx teeth obtuse 
Corolla lobes less than half the exserted 
part of the tube 
Corolla blue, lobes bilobed 2. deflexa. 
Corolla dark purple, lobes obtuse orretuse 
Whole plant nearly glabrous, efarinose 3. muscarioides. 
Leaves hairy, scape and inflorescence 
farinose 
Leaves repand-dentate, contracted 4. bellidifolia. 
into petiole 
Leaves lobulate, sessile 5. Watson. 
Corolla lobes more than half as long as the 
exserted part of the tube 
Corolla lobes obcordate 6. pendulifiora. 
Corolla segments ovate or oblong 
Leaves crenulate, spikes over 4 cm. long 
Spikes over 7 cm. long 7. Littoniana. 
Spikes under 6 cm. lon 8. Vials. 
Leaves entire or coarsely lobulate, 
eads globose 
Leaves entire, broadly spathulate 9. cernua. 
sessile 
Leaves rather coarsely lobulate ob- 10. gracilenta. 
long, narrowed into petiole 
1. Primula eter tet Pax, in Engl. Pflanzenreich, Primul. 
(1905), fig. 27a. 
A blue-flowered species of northern Shensi; geographically 
an outlier of the group’ s range and morphologically distinct 
from the other species by reason of its acute calyx teeth. There 
is no specimen at Kew. 
2. Primula deflexa, Duthie. Primula Viali, Pax, quoad 
fig. 27c., in Engl. Pflanzenreich, Primul. (1905), 93. 
3. Primula muscarioides, Hemsl., in Bot. Mag., t. 8168. 
The flowers under cultivation are pale purplish-blue. The 
species is found in the portion of Yunnan lying north of the 
Yangtze Kiang. To Hemsley’s original locality may be added 
Tsekou, Soulié, No. 1347, and Monberg. 
