CLASS X. ORDER IV.] UMBILICUS. 669 



pendulous, or, as in the variety jS. horizontalis, patens. Calyx of live 

 lanceolate segments, united at the base. Corolla pale greenish yellow, 

 bell-shaped, with a short limb, of five lanceolate recurved segments. 

 Stamens ten, inserted into the corolla, five longer than the others, with 

 slender rw] -shaped Ji laments, and ovate anthers, of two cells. Ovaries 

 five, linear, terminating in a short style^ with an obtuse stigma^ and 

 accompanied at the base with an oblong nectariferous gland. Capsules 

 five, linear, oblong, single celled, bursting on the inner angle, and 

 containing numerous ovate pointed seeds. 



Habitat. — Old walls, rocks, &c., in dry places; not uncommon, 

 especially in sub-alpine districts. 



Perennial; flowering from June to August. 



The C. horizontalis of Guss is by no means an uncommon plant 

 with us ; but we are unable to fix upon any character by which to 

 distinguish it from U. penclilinuSy its only peculiarity being that of the 

 flowers standing out horizontally instead of being pendulous, but this 

 is by no means a constant character, since it may not unfrequently be 

 observed on the same plant that some of the flowers are pendulous, and 

 others horizontal, and in difi'erent plants they may be observed in 

 every state between pendulous and horizontal. We have, therefore, 

 thought it only a variety, if, indeed, it is deserving even that distinc- 

 tion from the common state of the plant. 



2. U. erecl'uSj De Cand. (Fig. 764.) erect Navelwort^ or yellow 

 Pennywort. Lower leaves roundish, somewhat peltate, dentato-crenate; 

 raceme with erect flowers ; bracteas sub-dentate. 



De Cand. Prod. 3. p. 400.^Lindley, Synopsis, p. 64. — Cotyledon 

 lutea, Huds. — English Botany, t. 1522. — English Flora, vol. ii. p. 

 315.— Hooker, British Flora, vol. i. p. 211. 



Root fleshy, creeping. The whole plant smooth and succulent, from 

 twelve to fourteen inches high. Stem roundish, smooth, pinkish, 

 leafy, the lower leaves, only slightly peltate, the upper somewhat 

 kidney-shaped, thickish, fleshy, smooth, with a stout mid-rib, and 

 dentato-crenate margins. Inflorescence a terminal densely crowded 

 raceme, of numerous erect jellow floivers, from the axis of erect more 

 or less toothed or crenated bracteas, sometimes entire. Calyx of five 

 narrow lanceolate segments, united at the base. Corolla yellow, bell- 

 shaped, with a spreading limb of five lanceolate segments. Stamens 

 with awl-shaped siendev fllaments , inserted into the corolla, five longer 

 than the others, bearing roundish anthers, of two cells. Ovaries rive, 

 linear, ovate, united at the base, and at the base on the outer side 

 bearing a semi-lunate nectariferous gland. 



Habitat. — Walls and rocks ; very rare. West Riding of Yorkshire. 

 — Mr. TofleuL And Hudson understood that it grew in Somersetshire. 



Perennial; flowering in July. 



This is a very doubtful native plant, and perhaps ought not to be 



4 s 



