93 
ANNALS ОҒ ROYAL BOTANIC GARDEN, CALCUTTA. 
various parts of China. It has consequently been possible to trace in detail the gradual transitions 
between tha many varieties which, however much the extreme forms may differ from each other, con- 
stitute one uninterrupted series. The most important links are formed by varieties from Mongolia and 
South-Eastern Tibet, the invasion of the Himalaya by D. grandiflorum having evidently taken place from 
the side of Central and Eastern Tibet. None of the characters by which D, ceruleum has been supposed 
to be distinguished from D. grandiflorum proves constant on detailed examination, as will be seen from 
the description of the varicties of D. grandiflorum to which we now proceed. 
Var. а. 
Var. В. 
Var. у. 
Var. 
Var. е. 
Fer, 6 
Var. 9. 
Var. 0. 
Var. в. 
Var. к 
LATISECTA, JMazim.; stem erect, middle-sized or elongate (15—80 cm.), much branched; 
lacinie of leaves ovate or oftener lanceolate, acute or obtuse; sepals minutely pubescent, 
azure; follicles 3, recurved nearly from the middle.—Sechuan, Kansu. 
CHINENSIS, Fischer; tall, erect, rather rigid; laciniæ broad-linear; bracteoles minute 
linear, somewhat remote from flower; sepals minutely pubescent outside; lamina of anterior 
staminodes suborbicular, entire, glabrous on back and edges; carpels 3.— Siberia, China. 
PUBIFLORA, Turcs. ; stem prostrate, like peduncles and sepals densely minutely pubescent ; 
laciniæ elongate, narrow-linear; anterior staminodes suborbicular, entire.—Daieal region. 
5. Liynz1; stem tall, erect, like peduncles and sepals minutely ciisp-pubescent; lacinis 
narrow-linear, elongate; bracteoles linear, small, more or less remote from flower; lamina 
of anterior staminodes suborbieular, entire or emarginate, glabrous below, sometimes 
ciliate; earpels 3 (—4); follicles straight or recurved at the apex.—Siberia, Mongolia, 
Northern and Central China proper, Yarkand. 
Poranin1, Р. B.; as in б, but lamina of anterior staminodes obovate-oblong, emargin- 
ate or bilobed, ciliate, more or less hairy below; sepals outside near the base minutely 
pubescent or sub-villose.—Setchwan (Potanin 7). 
KUMAONENsIS, E. Huth; stem erect, subglabrous, 40—60 ст. high, 3—4 mm. thick 
near base; leaves 3-partite, middle division 3-fid, lateral ones divided into 3 ог more 
segments, lacinie broad-linear, the longer ones sometimes 2 em. long by 2 mm. broad; 
inflorescence racemose-paniculate, many-flowered; pedicels villous; bracteoles small, linear 
remote from flower; sepals 11—18 mm. long, sky-blue, villous outside; lamina of anterior 
staminodes suborbicular, subentire or deeply bilobed, yellow-bearded, blue; carpels 3.— 
Kumaon: Byaus, near Kutti 13—14,000’ (Duthie !); Патша, in the Nipchang valley 
13—14,000^ (Duthie !); on Млйара Gadh 11—12,000° feet (Durhie 1) ; Nipal; on Nampa 
Gàdh, 10--11,000” (Duthie !). 
TENUICAULIS, P. В.; stem very slender (30—50 cm. high, 1—15 mm. thick), sparse- 
ly beset with retrorse hairs; leaves remote, moderately cut, lacinie lanceolate-linear, 
subobtuse, the longer ones 15—35 mm. long, 2—8 mm. broad; inflorescence racemose, 
very lax, few-flowered; bracteoles linear, remote from the flowers; peduncles and sepals 
covered with short hairs; sepals blue or purple; lamina of auterior staminodes obovate- 
oblong, bilobed or nearly bifid, hirsute on upper surface, rarely nearly bearded; carpels 
humbi: near Phemü and Rinchingong (King’s collectors 1). 
Davini, Franchet pro sp.; middle-sized, hispidulous with longish adpressed or spread- 
ing hairs; stems slender, ascending; Јастив of upper leaves linear; flowers solitary or 
subeorymbose; peduncles shortly retrorse-pubescent; sepals puberulous ; anterior staminodes 
oblong, bilobed, near the base yellow-bearded; carpels З (F).— Tibet, prov. Март. 
sETCHWANZNsIS, P. В.; а small slender plant, scarcely branched; stem and peduncles 
retrorse-pilose, indumentum below the sparsely hairy sepals rather longer; laciniæ linear- 
lanceolate ; bracteoles elliptie-oblong, opposite, just below the sepals; lamina of anterior 
staminodes ovate-oblong, deeply bilobed, slightly hairy; carpels 3.—Setchwan (Henry /). 
This variety, like 6, и, € and others, might be considered a species of the second order. 
KUNAWARENSIS (= D. сегиеит of Jacquemont); stem 80—50 cm. high, 3—5 mm. 
thick; leaves little or not crowded near the base, much divided; laciniz linear, acute 
or subacute, 5—20 mm. long, 1-2 mm. broad; inflere:cence panieulate-eorymbose, 
