CHELIDONIUM 
157 
specialised and is therefore placed last in the sequence of the genera of the family : it is connected with Chelidonium 
through Meconopsis. 
26 genera ; chiefly in the north temperate zone. 
British tribes of Papaveraceae 
Tribe I. Chelidonieae (see below). Latex yellowish to reddish. Stigmas 2 (rarely 3 — 4). 
Seeds arillate. 
Tribe II. Papavereae (p. 158). Latex yellowish to white. Stigmas 4 — 16. Seeds usually not 
arillate. 
Tribe I. *CH ELI DON I EA E 
Chelidonieae Reichenbach Handb. 264 (1837) partim ; Fedde op. cit. 98 et 203 (1909). 
For characters, see above. Only British genus : — * Chelidonium. 
Genus 1. ^Chelidonium 
Chelidonium [Tournefort Inst. 231, t. 116(1700);] L. Sp. PI. 505 (1753) et Gen. PI. ed. 5, 224 (1754) pro 
min. parte; Prantl und Kiindig Pflanzenfam. iii, pt. 2, 139 et 140 (1891); Fedde in Pflanzenr. iv, pt. 104, 212(1909). 
Perennial herb, with orange-coloured sap. Leaves petioled ; laminae pinnate. Inflorescence 
cymose, umbellate or nearly so. Flowers dimerous. Ovary unilocular, of 2 carpels. Style distinct. 
Stigmas 2, sessile, oblique. Fruit a capsule, elongate, simulating a siliqua, carpels dehiscing from 
below upwards. Seeds 00 , arillate, with a shining and punctate testa. 
Linnaeus (toe. cit.) recognised four species of his genus Chelidonium of which only one (C. majus ) now remains: the 
others are distributed in the genera Glaucium and Roemeria. If we here strictly followed Art. 45 of the international rules 
of botanical nomenclature, it would be necessary to apply the name Chelidonium to Glaucium and the name Glaucium to 
Chelidonium. As we have before stated, we do not in the Camb. Brit. FI. change any established generic names on grounds 
of this character. We adopt the position that all generic names which are firmly established in post-Linnaean botanical 
literature must, if found to be incorrect on mere pedagogical grounds, be regarded as nomina conservanda. In fact, we 
have elsewhere (see Journ. Bot. Iii, 197 (1914)) urged our view that it is a pity the same attitude cannot be taken up with 
regard to specific names ; but this course, at present, is unfortunately impracticable. 
i species : — *C. majus. 
I. # CHELIDONIUM MAJUS. Greater Celandine. Plate 167 
Hirundinaria Turner Names (1548); C. majus Gerard Herball 91 1 (1597); Papaver cornicidatnm Interim 
chelidonia dictum Ray Syn. ed. 3, 309 (1724). 
Chelidonium majus L. Sp. PI. 505(1753)!; Smith Ft. Brit. 563(1800)!; Syme Eng. Bot. i, 99 (1863); 
Rouy et Foucaud FI. France i, 1 66 (1893); Fedde op. cit. 212 (1909). 
leones: — Smith Eng. Bot. t. 1581; Woodward Bot. Med. Suppl. t. 263; Ft. Dan. t. 542; Reichenbach 
Icon, iii, t. 10, fig. 4466; Syme Eng. Bot. i, t. 67. 
Camb. Brit. FI. iii. Plate 167. (a) Lower leaf, (b) Flowering shoot. (c) Flowering and fruiting shoot. 
(d) Fertile shoot of subvar. laciniatum. ( e ) Petals of subvar. laciniatum. a — c from Huntingdonshire (E. W. H.) ; 
d — e from Herefordshire (S. H. B.). 
Exsiccata : — Billot, 4; Todaro, 917; Herb. Ft. Ingric. vii, 35. 
Shoot about 3 — 7 dm. high, brittle, with some soft hairs. Petioles of the lower leaves about 
6 cm. long. Laminae pinnate ; pinnae about 3 — 5 cm. long and 2 broad, toothed or lobed or 
laciniate, glabrous underneath. Peduncle hairy, long (3 — 8 cm.). Bracts involucral, at the base of 
the pedicels, small. Pedicels hairy, slender, about 2 — 3 cm. long. Inflorescence umbellate. Flowers 
about 1 ‘5 — 2 '5 cm. in diameter; May to October. Sepals yellowish. Petals yellow. Capsule 
glabrous, rather tortuous, about 3 — 10 together, each 3 — 4 cm. long. 
(ft) subvar. laciniatum comb. nov. ; C. majus var. ft L. Sp. PI. 506 (1753); C. laciniatum Miller Gard. 
Diet. ed. 8, no. 2 (1768); C. majus var. laciniatum Grenier et Godron Ft. France i, 62 (1847); Syme Eng. Bot. 
i, 99 (1863); Rouy et Foucaud FI. France i, 1 66 (1893). [C. majus folio magis dissecto Johnson in Gerard 
Herball ed. 2, 1069(1633); C. majus foliis quernis Dillenius in Ray Syn. ed. 3, 309 (1724).] 
leones Reichenbach Icon, iii, t. 10, fig. 4467, as C. laciniatum. 
Camb. Brit. Ft. iii. Plate 167 (d — e). 
Exsiccata : — Billot, 4 bis. 
Laminae and petals laciniate. 
