Centranthus. — Valerianella. G97 
inserted on the tube of the corolla, alternating with its lobes; fila- 
ments separate, incurved in bud, exserted in flower. Anthers in- 
trorse, 2-celled, incumbent. longitudinally dehiscing. Ovary inferior, 
3-celled; two cells empty and often smaller than the third fertile 
one; ovule solitary, pendulous from the apex of the cell, anatropous; 
style simple, filiform; stigmas 2—3, free or connate. Fruit in- 
dehiscent, dry, 1—3-celled, 1-seeded; seed pendulous, exalbuminous; 
embryo straight, radicle superior, short, cotyledons oblong, rather 
thick. — Herbs, usually annual. Leaves opposite, entire dentate or 
pinnatifid, exstipulate, radical ones often rosulate. Flowers bracteate, 
but little tending to be capitate. 
An Order of moderate size, widely scattered and chiefly occuring in 
temperate climates. 
A. Calyx-limb involute in flower, expanded in fruit to 
apigatliciy Pappie Vii yLktinn havrd ts Waals of 1. Centranthus 
B. Calyx-limb dentate or crown-like in fruit, regular 
Oreirremulary. 4.) opya si75) Slee. note eee ohh! "Sp ye ee 2. Valerianella. 
525. (1.) Centranthus Neck. 
Calyx-limb involute during flowering, expanded in fruit into a 
feathery pappus. Corolla tubular-funnel-shaped, more or less long- 
spurred at base, 5-lobed. Stamen 1. Fruit 1-celled. — Perennial, 
glabrous, glaucescent herbs, with pink flowers in thyrsoid panicles. 
A small genus widely distributed in the Mediterranean region. 
1290. Centranthus macrosiphon Boiss. Diagnos. Plant. Or., 
Ser. I fase. 3 (1843) p. 57. — Aschers.-Schweinf. Ill. Fl. d’Kg., 
Supplem. p. 759. — An annual glabrous herb, 20—30 cm high, or 
sometimes somewhat more; stems erect, fleshy, fistulous, glaucous. 
Leaves ovate, the lower ones shortly petioled entire or obsolete 
dentate, obtuse, the upper ones sessile acute, dentate, mor or less 
incised at the base with linear lobes; panicles at the tup of the 
branches corymbosed densely flowered; bracts small linear mem- 
branous-margined; flowers deeply rose-coloured, corolla-tube thrice 
as long as the fruit; spur one third as long as the tube; setae of 
the pappus blackish, plumose, in the lower part somewhat connate. 
— Flow. March. 
M. ma. Often cultivated in Alexandrian gardens and sometimes 
naturalized. 
Also known from Spain. 
526. (2.) Valerianella Haller. 
Calyx-limb persistent, in the flowering stage not involute, often 
accrescent, dentate or entire, membranous or coriaceous, sometimes 
