522 MR. C. BUCKNALL : A REVISION 
S. armeniacum is most nearly allied to S. asperum and S. sepulerale, but 
differs from both in the sessile clasping leaves; from S. asperum it is clearly 
distinguished. by the larger calyx with elongated linear segments, and from 
S. sepulerale by the more setose and. prickle-like clothing, and by the more 
deeply divided calyx. It need not be confused with S. caucasicum, which 
has the lower leaves gradually attenuated into the petiole, the upper 
partially decurrent and the calyx-segments shorter than the tube. 
It may be noted that, of the four members of this group, the distribution: 
as far as is known, is as follows :—S. sepulehrale is found furthest west, in 
the neighbourhood of Trebizond; S. armeniacum comes next in. Armenia 
and Georgia; here the area of S. asperum commences and extends north- 
wards in the Caucasus, while that of S. peregrinum extends southwards and 
astwards from the south-east of the Caucasus into Persia. 
7. S, racricum, Willd. in Neve Schrift. Nat. Berl. ii. p. 120, t. 6. fig. 1 
(1799). 
Radix fusiformis. Caulis pilosus aut parce tuberculato-setosus, ramosus. 
Folia molliter tenuiterque puberula et setoso-pilosa, ovata vel ovato-oblonga, 
acuta, bullata, margine subundulata, inferiora petiolata, basi cordata vel 
rotundata, media breviter petiolata, petiolis ad basin marginatis, summa 
ovata, acuminata sessilia. Rachis pedicellique pilis sursum curvatis vestiti, 
Сауе pilosus;ad tertiam partem inferiorem in lacinias lanceolatas, acutas vel 
obtusiuseulas fissus. Corolla flavo-albida, calyce duplo triplove longior. 
Fornices late lineares, obtusi, stamina æquantes. Anthere basi apiculate, 
filamenta subeequantes. Дене curvatee, venoso-areolate, tuberculate. 
Caulis 3-4 dem. altus; folia caulina inferiora 575-775 em. longa, 9-45 em. 
lata ; flores 10-12 mm. longi ; calyx 5-6 mm. longus ; corolla 9-14 mm. longa; 
nucule 2:5 mm. longze, 1:5 mm. latie. 
S. bullatum, Hornem. Cat. Hort. Havn. Supp. 2, p. 13, et Hort. Reg. 
Havn. i. p. 179 (1813) ; Jacq. fils, Eclog. i. p. 119, fig. 81 (1811-106). 
S. tauricum, Willd., Sims, Dot. Mag. t. 1787 (1816). 
S. bullatum, Hornem., Roem. & Sehultes, iv. p. 66 (1819). 
S. tauricum, Willd., Reich. Pl. erit. t. 260. fig. 442 (1825); DC. Prod. 
x. p. 39 (1846); Ledeb. Fl. Ross. iii. p. 116 (1846-51) ; Kusnez. 
Cauc. Sp. беп. Symph. p. 41, t. i. figs. 9 & 11 (1910). 
Grocer. Disrr.— Russia : from Podolia to the Crimea. 
SPECIMENS EXAMINED :— Native. №. orientale. In ripis fluviorum Tauriz. 
Herb. Pallas in Herb. Mus. Brit.—8. sp., e Podolia austr. Herb. W. Besser 
in Herb. Kew. and Mus. Brit.—8. taurieum, Willd. Sudak, Crimea. M. Lé- 
veillé. Herb. Cons. Bot. Genev.—8. orientale, Ві. non Linn, Linia pr. 
Odessa. Herb. Ruth. cent. i. no. 91. Lang & Szovits. Herb. Kew. and 
Unir. Cantab.—S. orientale, Linn. — Chrebet-Jaila, Kisiltaseh, Kaban 
