GLAUCIUM 
i59 
Genus 3. Glaucium 
Glaucium [Tournefort Inst. 254, t. 130 (1700) partim ; Miller Abr. Gard. Diet. ed. 4 (1754) partim ;] 
Crantz Stirp. Anstr. ii, 133 (1763); Jussieu Gen. PI. 236 (1789); Medicus in Usteri Ann. Bot. iii, 14 (1792); 
Prantl und Kiindig in Pjianzenfam. iii, pt. 2, 141 (1889); Fedde op. cit. 221 (1909). 
Annual or biennial herbs with yellow sap. Ground leaves petiolate ; petioles often vaginate below ; 
laminae usually pinnatifid, segments sinuate to dentate. Inflorescence solitary, axillary or terminal. 
Petals brown, yellow, scarlet, or bluish, convolute in bud. Stamens co . Ovary bilocular or rarely 
trilocular. Ovules 00 . Stigmas 2 or rarely 3, sessile or subsessile, deflexed, wider than the capsule. 
Capsule greatly elongate, simulating a siliqua, bilocular almost to the base, dehiscing from below 
upwards. Seeds 00 , ovate-reniform, punctate, with no aril, partly immersed in the aerenchymatous 
septum. 
21 species; Europe and Asia, especially Mediterranean. 
British species of Glaucium 
1. *G. corniculatum (see below). Stem hairy. Petals scarlet. Stigmas stouter. Capsule hairy. 
2. G. flavum (see below). Stem glaucous and glabrous (or with hairs minute). Petals yellow. 
Stigmas more slender. Capsule glabrous. 
I. *GLAUCIUM CORNICULATUM. Scarlet Horned Poppy. Plate 169 
Papaver cornutum flore rubro Gerard Herball 294 ( 1 597)- 
Glaucium corniculatum Curtis FI. Lond. ii, no. 101 (n. d.) ; Syme Eng. Bot. i, 96 (1863); Rouy et 
Foucaud FI. France i, 164 (1893); Fedde op. cit. 223 (1909); Chelidonium corniculatum L. Sp. PI. 506 (1753)!; 
Glaucitcm phoenicium Crantz Stirp. Austr. ii, 133 (1763); Smith Ft. Brit. 564(1800); Chelidonium glabrum Miller 
Gard. Diet. ed. 8, no. 5 (1768). 
The British plant belongs to the following variety: — 
(a) G. corniculatum var. phoenicium DC. Syst. Nat. ii, 96 (1821); Rouy FI. France i, 164 (1893); Fedde op. cit. 
223 (1909). 
leones: — Smith Eng. Bot. t. 1433, as G. phoenicium', Curtis FI. Lond. ii, t. 101, as G. corniculatum ; Sibthorp 
and Smith FI. Graec. v, t. 489, as G. phoenicium , Reichenbach Icon, iii, t. 12, fig. 4471, as G. corniculatum. 
Camb. Brit. FI. iii. Plate 169. (a) Lower leaf, (b) Flowering branch. ( c ) Flower-bud. (d) Flower. 
( e ) Petal. (/) Fruit, (g) Portion of fruit, with a carpel removed. Hort., from seed from Jersey (E. W. H.). 
Exsiccata : — Bourgeau (PI. d'Esp.), 534; (PI. Canar.), 613. 
Annual. Shoot about 6 dm. high, hairy. Petioles of the lower leaves about a third as long as 
the laminae. Laminae pinnatifid, those of the stem-leaves hemi-amplexicaul ; lobes coarsely toothed. 
Flowers up to 5 cm. in diameter; June and July. Sepals 2, softly hairy. Petals scarlet with a dark 
patch at the base. Stamens about 1 5. Ovary hairy ; stigma with conspicuous lobes. Fruit hairy, 
about 16 — 20cm. long. Seeds blackish, reticulate; August. 
Sandy places near the sea, usually adventitious; e.g., Jersey, Dorset, Somerset, Norfolk. 
Europe (central and southern) ; northern Africa ; Asia Minor to Persia 
2. GLAUCIUM FLAVUM. Yellow Horned Poppy. Plate 170 
Papaver corniculaticm Turner Names (1548); P. cornutum flore luteo Gerard Herball 294 (1597); P. cornicu- 
latum luteum Ray Syn. ed. 3, 309 (1724). 
Glaucium flavum Crantz Stirp. Austr. fasc. ii, 133 (1763); Rouy et Foucaud FI. France i, 163 (1893); 
Fedde op. cit. 232 (1909); Chelidonium glaucium L. Sp. PI. 506 (1753)!; Smith Eng. Bot. no. 8 (1791); G. luteum 
Scopoli FI. Cam. i, 369 (1772); Smith FI. Brit. 563 (1800); Syme Eng. Bot. i, 97 (1863); G. glaucium Karsten 
Deutsche FI. 649 (1883). 
leones : — Smith Eng. Bot. t. 8, as Chelidonium glaucium ; FI. Dan. t. 585, as Chelidonium glaucium ; Reichenbach 
Icon, iii, t. 11, fig. 4468, as Glaucium luteum. 
Camb. Brit. FI. iii. Plate iyo. (a) Ground-leaf. (b) Lower stem-leaf. (c) Flowering shoot. (d) Fruit. 
Isle of Wight (E. W. H.). 
Exsiccata: — Billot, 2806, as G. luteum ; Bourgeau (PI. Esp.), 334; Fries, x, 29, as G. luteum ; Todaro, 
1320, as G. luteum. 
