56 BALFOoUR—NEw SPECIES OF PRIMULA. 
The differences from Primula are much greater than some of 
those which separate other genera from it—take, for instance, 
Androsace or Cortusa. 
The genus of Primulaceae to which Omphalogramma shows 
most resemblance is the monotypic Bryocarpum which in its 
species, the yellow-flowered B. himalaicum, Hook. f. et Thoms. 
is a well known Sikkim plant and is now in cultivation. The 
whole facies of Bryocarpum is that of Omphalogramma—the 
petiolate ovate leaves arising within a sheath of scales, the long 
ebracteate scape with one large terminal oblique flower, the 
numerical symmetry of the flower, 5-8 parts in the whorls, the 
calyx cut into narrow segments to the base, the long corolla 
tube and lobes. Its differences are the less hirsute covering, 
the stamens with short filaments and longer acuminate anthers, 
the long cylindric capsule many times the length of the calyx 
and opening by a stylopodial lid beneath which are found some 
short valves—in Omphalogramma it is always short ovoid with 
the upper quarter extruding from the calyx and dehiscing from 
the style base right down often to the base,—lastly, the oblong 
ellipsoid seeds with areolate surface. A subordinate character : 
the ovary of Bryocarpum himalaicum, Hook. f. et Thoms. has a 
sparse coating of red capitate glands. I have seen nothing of 
this in Omphalogramma. Those who wish to sink Omphalo- 
gramma would place it more conveniently in Bryocarpum than 
in Primula. 
Were I to write a monograph of Primula I should exclude 
Omphalogramma. As I am not doing so, I add here the names 
of the plants that are involved in this Primula~-Omphalogramma 
discussion, giving them their specific designation under both 
genera :— 
Primula Elwesiana, King (1882) =Omphalogramma Elwesiana 
(King), Franch. (1898). 
Primula Delavayi, Franch. (1885) =Omphalogramma Dela- 
vayt, Franch. (1898). 
Primula vincaeflora, Franch. (1887) =Omphalogramma vin- 
caeflora, Franch. (1898). 
Primula Franchetii, Pax (1905) =Omphalogramma Souliei, 
Franch. (1898). 
Primula Engleri, Knuth (1907) =Omphalogramma Engleri 
(Knuth), Balf. fil. (r915). 
Primula Viola-grandis, Farrer et Purdom (1915 =Omphalo- 
gramma Viola-grandis, Farrer et Purdom ( IQI5).. 
(Primula Waddellii, Balf. fil. et W. W. Sm. 
Pusilla caespitosa efarinosa epilosa. Folia circa I cm. longa 
spathulata crassa ; lamina ad 3 mm. lata apice rotundata margine 
