538 MR. С. BUCKNALL : A REVISION 
itis only at the top of mature plants that they are corymbose. The calyx 
also is very different from that of S. brachycalya, which Boissier deseribes in 
the ‘ Diagnoses,’ as "breviter campanulato laciniis triangulari-lanceolatis 
obtusiusculis tubo calycino brevioribus," and in ‘Flora Orientalis, * calyce 
fructifero parum aucto breviter eampanulato ad tertiam partem in dentes 
triangulares fisso." In 8. Bornmuedleri it is tubular, cylindric, much 
enlarged in fruit, with broadly ovate, obtuse teeth, which are scarcely one 
sixth of the length of the tube—shorter in proportion than in any other 
described species. From S. palestinum it differs in the same way, but in 
that species the calyx is still more enlarged in fruit. It also differs from 
both in being very shortly and sparingly pilose. 
Having only been found in the north of Asia Minor, its area is, as far as 
is known, quite distinet from those of the related species, being about 200 
miles distant from that of S. paliestinum and 600 from that of S. brachyealya. 
19. S. TUBEROSUM, Linn., Sp. Pl. ed. I. p. 136 (1753). 
Radix obliqua, ramosa, tuberoso-incrassata, nodosa. Caulis retrorsum 
setosus, simplex, raro parce ramosus, sepe apice bifidus. Folia puberula et 
magis minusve dense hispida, inferiora parva, ovata vel spathulata, in petiolum 
alatum, basi subdilatatum, amplexicaulem contracta vel attenuata, media 
majora, ovato-lanceolata vel elliptiea, in petiolum attenuata, summa sessilia, 
subdecurrentia. acemi pauciflori. Hachis pedicellique pubescentes parceque 
pilosa. Calyx ad quartam partem inferiorem in lacinias lanceolatas acutas 
pubescentes longe ciliatas fissus. Corolla ochroleuca, calycem duplo 
triplove excedens. Fornices inclusi, late triangulari-subulati, aeuminati, 
stamina dimidium superantes.  Antherw basi apiculatz, filamenta duplo 
excedentes. Nucule late ovate, leviter curvatæ, supra basin constricte, 
obtuse, debiliter rugoso-areolate, minute tubereulatze. 
Caulis 2-5 dem. altus ; folia caulina media 10-14 em. longa, 3°5-6 ст. 
lata ; flores 15-18 mm. longi; calyx 7-8 mm. longus ; corolla 12-16 mm. 
longa ; nucule 3°5 mm. longe, 3 mm. late. 
S. tuberosum, Lobel, Stirp. Hist. p. 315, with figure (1576). 
Symphytum sp., Gerard, Herball, p. 661 (1597). 
S. tuberosum majus, Clusius, Hist. lib. 5. p. elxvi (1601). 
S. majus tuberosa radice, C. Bauhin, Pinax, p. 259 (1623). 
S. tuberosum, Gerard, Herball emend. p. 806 (1633). 
S. MU Linn., Jacq. Obs. pars 3, p. 12, t. 63 (1768) ; Jacq. Fl. Austr. 
. 225 (1773-78) ; Lightf. Fl. Scot. p. 1092 (1777) ; With. Bot. Arr. 
me 2, p. 196 (1787) ; Huds. Fl. Angl. ed. 2, p. 648 (1798) ; Smith, 
Fl. Brit. p. 219 (1800) : Smith, Eng. Bot. t. 1502 (1805) ; Lehm. 
Asperif. no. 253 (1818) ; Reich. Ieon. xviii. t. 103 (1857) ; Dietr.. 
