47 
Genus 2. Herniaria. 
H. glabra. Rupture-wort. Fig. 461. 
Stems prostrate. Flowers in leafy spikes. Leaves glabrous. Sandy 
places. 2-4 in. Perenn. July and Aug. Green, (f) 2?. £. 1. 206. 
E. B. 2. 348. H. fy Arn. 153. Bab. 123. Lind. 61. 
H. hirsuta. Fig. 462. 
Flowers in axillary clusters. Leaves liairy. A variety of glabra l 
Sandy places; rare. 2-4 in. Perenn. July and Aug. Green. (£) 
E.B.l. 1379. E. B. 2. 348*. H. Arn. 153. Bab. 123. Lind. 61. 
H. ciliata. Fig. 463. 
Flowers in axillary clusters on the lateral branches. Leaves ciliated. 
A variety of glabra. Cornwall and Guernsey. 2-4 in. Perenn. 
July. Green, (f) E. B. Supp.28b7. H. Arn. 153. Bab. 123. 
Lind. 322. 
Genus 3. Illecebrum. 
I. verticillatum. Whorled Knot-grass. Fig. 464. 
Stems procumbent. Leaves opposite, with membranous stipules. 
Flowers in whorls. Bogs in Cornwall and Devon. 4 in. Perenn. 
July. Pinkish, (f) E.B. 1. 895. E. B. 2. 345. H. Arn. 154. 
Bab. 123. Lind. 61. 
Genus 4. Polycarpon. 
P. tetraphyllum. Four-leaved All-seed. Fig. 465. 
Leaves usually in fours. Flowers in panicles, with 3 stamens. Southern 
coasts. 4 in. Ann. May-Sept. Greenish. (§) E. B. 1. 1031. 
E.B. 2.193. H.fyArn. 154. Bab. 124. Lind.6 1. 
Order XXXIV. CRASSULACE^E. 
Genus 1. Till^ea. 
T. muscosa. Fig. 466. 
Leaves succulent. Flowers axillary, usually 3-cleft. Sandy wastes. 
2 in. Ann. May and June. Reddish. (|) E.B. 1.116. E.B. 2.254. 
H.fyArn. 156. Bab. 125. Lind. 63. 
Genus 2. Cotyledon. 
C. Umbilicus. Fenny-wort. Fig. 467. 
Root tuberous. Leaves peltate, depressed in the centre. Flowers 
pendulous. Moist rocks and walls. 4 in.-l ft. June-Aug. Greenish, 
(f) E.B. 1.325. E.B. 2. 648. H. Arn. 156. Bab. 128. Lind. 64. 
C. lutea. Great Fenny-wort. Fig. 468. 
Root creeping. Lower leaves only peltate. Flowers erect. Not 
native. 1-1^ ft. Perenn. July. Bright yellow, (f) E.B. 1. 1522. 
E. B. 2. 649. H. fy Arn. 156. Bab. 128. Lind. 64. 
Genus 3. Sempervivum. 
S. tectorum. Houseleek. Fig. 469. 
Leaves broad, succulent, in close tufts. Offsets spreading. Walls 
and roofs; scarcelv wild. 6-8 in. Perenn. July. Pink, (f) 
E.B. 1. 1320. E'.B. 2. 687. H. Arn. 156. Bab. 127- Lind. 65. 
Genus 4. Rhodiola. 
R. rosea. Rose-root. Fig. 470. 
Flowers 4-cleft. Dioecious. Leaves ovate, glaucous, serrated. Moun¬ 
tain rocks. 6-8in. Perenn. Yellow, (f) E.B. 1.508. E.B. 2.1395. 
H. Arn. 157. Bab. 126. Lind. 64. 
