( 253 .) 
CLAYTO'NIA* *. 
Linnean Class and Order. Penta'ndria f, Monogy'nia. 
Natural Order. Portula'cee +, Juss. Gen. PI. p. 312. — Sm. 
Gram, of Bot. p. 164. — Lindl. Syn. p. 62. ; Introd. to Nat. Syst. of 
Bot. p. 159. — Rich, by Macgiliiv. p. 510. — Loud. Hort. Brit. p. 
516. — Don’s Gen. Syst. of Gard. and Bot. v. iii. p. 71. — Mack. FI. 
Hibern. p. 59. — Rosai.es ; section, Crassulin.e ; type, Portu- 
lacejE ; Burn. Outl. of Bot. pp. 614, 730, & 739. — Succulents, 
Linn. 
Gen. Char. Calyx (fig. 2.) inferior, of 2 oval, opposite, per- 
manent sepals. Corolla (see fig. 1.) of 5, inversely heart-shaped, 
or inversely egg-shaped, inferior, equal, clawed petals; their claws 
slightly connected at the base. Filaments (see figs. 1 & 3.) 5, awl- 
shaped, inserted on the claws of the petals. Jlntliers oblong, in- 
cumbent. Germen (see fig. 4.) sessile. Style (see fig. 4.) thread- 
shaped, simple, about as long as the stamens. Stigma (see fig. 4.) 
3-cleft, downy inside. Capsule (see figs. 5, 6, & 7.) roundish, of 
1 cell, and 3 elastic valves. Seeds (see figs. 7 & 8.) 3, sessile. — 
Herbs smooth, rather succulent, usually perennial. Leaves quite 
entire ; radical ones petiolate ; upper usually opposite and sessile, 
and sometimes connate. Racemes terminal. Flowers white or 
rose-coloured. 
The calxjx of 2 sepals ; the corolla of 5 petals, bearing the 
stamens on their claws ; the 3-cleft stigma ; and the superior, 
1-celled, 3-valved, 3-seeded capsule; will distinguish this from 
other genera in the same class and order. . 
One species British. 
CLAYTO'NIA ALSINOFDES. Chickweed-like Claytonia. 
Spec. Char. Root fibrous. Upper Leaves opposite, sessile, 
egg-shaped, mucronate ; radical ones petiolate, egg-shaped, point- 
ed ; all reticulately veined. Pedicels of the raceme for the most 
part solitary. Petals bifid. 
Curt. Bot. Mag. t. 1309. — Pursh. FI. Amer. Septont. v. i. p. 176. — Sprengel’s 
Systema Vegetabilium, v. i. p. 790. — Loudon’s Encyclopa'dia of Plants, pp. 184 
& 185. f. 3014. — Do Cand. Prod. Syst. Nat. Reg. Veget. v. iii. p. 360. — Don’s Gen. 
Syst. of Gard. and Bot. v. iii. p. 81. — Limnia alsinoides, Haworth's Syn. l’l. 
Suceul. p. 12. fide De Candolle. 
Localities. — In moist shady woods; very rare. — Derbyshire ; “ In an 
elevated part of a large plantation bordering Chatsworth Park, unquestionably 
wild ; of this I feel quite satisfied, as its situation is such as not to offer any 
probability of either seeds or plants being conveyed there by any other means 
than by nature:” Mr. Joseeu Paxton, September 8, 1837. 
Annual or Biennial. — Flowers from April to October. 
Root fibrous. Stem from 6 to 10 inches or a foot high, 
round, smooth, and shining. Leaves somewhat fleshy, quite entire, 
Fig. 1. A separate Flower. — Fig. 2. The Calyx. — Fig. 3. A Stamen. — Fig. 4. The 
Pistil. — Fig. 5. Calyx and Capsule. — Fig. 6. A Capsule, without the Calyx. — 
Fig. 7. A Capsule after the valves have opened. — Fig. 8. A Seed, a little magnified. 
* So named in honour of John Clayton, who collected plants, mostly in Virginia, 
and sent them to Gronovius, who published them in his Flora Virginica, Don. 
+ See folio 48, note t, t See folio 196, a. 
