CENTKANTHTJS. VALEEIANA. 177 



3 — 5-lobed, unequal or irregular often spurred or gibbous at 

 the base. Stam. 1 — 3, inserted in the tube, free, fewer than 

 the cor.-lobes. Ovary with 1 perfect fertile cell and often 

 2 abortive cells; ovule solitary, pendulous. Fr. dry.— No 

 stipules. 



1. CBNTBANTHtrs. Cor. 5-lobed, with a spur. Stam. 1. Fr. 

 1-celled, indehiscent, crowned with the limb of the calyx 

 expanded into a feathery pappus. 



2. Vaibriana. Cor. 6-lobed, gibbous but without a spur. 

 Stam. 3. F): l-celled, indehiscent, crowned with the hmb 

 of the calyx expanded into a feathery pappus. 



3. Vaxemakella. Oor. 5-lobed, without a spur. Stam. 3. 

 Fi: S-celled, indehiscent, crowned with the erect unequally 

 toothed limb of the calyx, 2 of the cells usually empty iniiated 

 or filiform. 



1. Centran'ihus Oand. 



1. C. ruber (DC.) ; 1. lanceolate stalked, upper 1. ovate- 

 lanceolate sessUe, spur much shorter than the cor.-tube twice 

 as long as the germen. — Valeriana 8m. -B. S. 1531. — St. 1 — 

 2 feet high. Fl. purple or white. — Ohalk-pits and old walls. 

 P. VI.— IX. JRed Valerian. E. I. 



*2. C. Calcitrdpa (Dufr.) ; radical 1. ovate entire, stem-1. 

 pinnatifid, spur very short. — 8y. E. B. 665. — Eltham, Kent. E. 



2. Valeeia'na Linn. Valerian. 



1. V. offidndlis (L.) ; I. all pinnate, Its. 9 — 21 lanceolate den- 

 tate-serrate terminal one not larger than the others, st. suloate 

 solitary, fr. glabrous ovate-oblong. — R. xii. 727. St. 9. — With 

 sucJcers, not stoles. St. 2 — 4 ft. high. Fl. flesh-coloured. 

 Radical 1. on long stalks. — a ; Its. ususdly 9 — 11 near together, 

 their anterior edge nearly entire, the posterior edge strongly 

 toothed. — ^. V. sambueifdlia (Mikan) ; Its. of rt.-l. ovate-acute, 

 of st.-l. oblong-lanceolate, all toothed on both edges. E. JB. 698. 

 Term. It. of rt.-l. often slightly the largest. Stoles long. — 

 Ditches, marshes and damp places. P. VI. VII. E. S. I. 



*2. V. pyrendioa (L.) ; I. heartshaped serrate stalked, upper 

 1. with 1 — 2 pairs of small lanceolate leaflets. — E. B. 1591. — 

 St. 2 — 3 feet high, furrowed. Fl. light rose-coloured. — Woods, 

 rare. P. VI. VII. E. S. 



3. V. dioica (Li) ; fl. imperfectly dicecious, root-l. ovate stalked, 

 stem-l. pinnatifid with a large terminal lobe, fr. glabrous. — E. B. 



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