CRASSULACEÆ. XVIII. Szpum. 
Tillæ'a erécta, Sauv. monsp. p. 129. Crdssula verticillaris, Lin. 
mant. 261.? Crassula caespitdsa, Cav. icon. t. 69. f. 2. Bieb. fl. 
taur. 1. p. 257. Flowers pale red. The 5 fertile stamens alter- 
nating with the petals, and the rudiments of the 5 sterile ones in 
front of the petals. 
Tufted Stonecrop. Fl. June, July. Clt. 1788. Pl. 4 foot. 
sees ** Leaves terete. Flowers yellow. 
69 S. quaprrFipum (Pall. itin. 3. p. 730. append. no. 90. t. 
P. f. 1.) leaves scattered, terete, bluntish ; root thick, of many 
necks; stems numerous, erect, simple; corymbs terminal, few- 
flowered, simple; pedicels about equal in length; length of nec- 
tariferous scales exceeding the breadth; flowers octandrous, 
4-cleft ; stamens a little longer than the petals. %.H. Native 
of Dahuria, the Ural Mountains, and Altaia, in humid stony 
places, on the tops of the Alps. Pall. ed. gall. in 8vo. vol. 8. 
p. 311.t. 104. f. 4. S. quinquéfidum and S. hexapétalum, Haw. 
rev. p. 26.2 Flowers yellow. 
Quadrifid-flowered Stonecrop. Fi. July. Clt. 1800. Pl. 4 ft. 
70 S. acre (Lin. spec. 619.) stems rather creeping at the 
base ; branches erect; leaves ovate, adnate, sessile, gibbous, 
erectish, alternate, glabrous ; cymes trifid; flowers sessile along 
the branches of the cyme ; petals lanceolate, acuminated. %. H. 
Native of Europe, common on walls, roofs of houses, rocks, and 
dry sandy ground; plentiful in Britain. Bull. herb. t. 30. D. C. 
pl. grass. t. 117. Smith, engl. bot. 839. Woody. med. bot. t. 
281. Curt. lond. 1. t. 32. Flowers yellow. The whole plant is 
acrid, and chewed in the mouth has a hot biting taste ; whence, 
and from its common place of growth, it has the name of wall- 
pepper. Applied to the skin it blisters, and taken inwardly it 
excites vomiting. In scorbutic cases and quartern agues, it is 
an excellent medicine under proper management. For the for- 
mer, a handful of the herb is directed to be boiled in eight pints 
of beer till they are reduced to four, of which 3 or 4 ounces are 
to be taken every morning. Milk has been found to answer this 
Purpose better than beer. Not only ulcers simply scorbutic, 
but those of a scrofulous or even cancerous tendency, have 
been cured by the use of this plant. It is likewise useful as an 
external application, in destroying fungous flesh, and in promot- 
Ing a discharge in gangrenes and carbuncles. 
Var. B, diminùtum (Haw. in phil. mag. 1831. p. 416.) much 
smaller than the species, hardly an inch high; stem creeping. 
% Native of the higher Alps of Provence ; also on Swaf- 
g Heath, Norfolk. S. acre 8 graciàle, D. C. prod. 3. p. 407. 
'glaciàle, Clarion in D. C. fl. fr. 4. p. 393. 
i ar. y, elongàtum (Haw. 1. c.) pendulous branches 7 inches 
82+ erect ones 4 inches ; leaves loosely imbricating. 
ty Stonecrop. Fl. June. Britain. Pl. 4 to } foot. 
ar ` SEXANGULA`RE (Lin. spec. 620.) stems branched at the 
eat oriferous ones erect; leaves nearly terete, adnate-sessile, 
stort y by threes on the flowering stems, and 3 in a whorl on 
a d ranches, imbricating in 6 spiral rows ; cymes trifid ; pe- 
Po colate, acuminated. %. H. Native of Europe, in dry 
nee ep and on walls. In England, but not common; as 
wiak a aleei, Sheerness, and on the Isle of Sheppy ; on Green- 
3 ark wall on the south side, near the western corner; on 
amous rotten walls of Old Sarum; also of Cambridgeshire. 
1646. Te Sent t. 118. Curt, lond. 4. t. 33. Smith, engl. bot. 
mag, 1894 C'e Ox Huds, Lam. fl. fr. S. spirale, Haw. in phil. 
yello - no. 176.—Cam. epit. 856. with a figure. Flowers 
ow.” Habit of S. acre, 
tangled Stonecrop. Fl. June, J uly. Britain. Pl. = foot. 
a OLONIE’NsE (Lois. not. p. 71.) stem branched at the 
loosene eae ones erect; leaves nearly terete, obtuse, 
at the base, glabrous, imbricated on all sides; cymes 
119 
trifid; flowers sessile, along the branches; petals acuminated. 
4%. H. Native of sandy woods, about Bologna. D. C. suppl. 
523. Root creeping. Sepals cylindrical, obtuse. Branches of 
cyme 6-10-flowered. S. schistésum, Lejeune, fl. spa. Flowers 
yellow. Perhaps sufficiently distinct from S. sexangulare, 
Bologna Stonecrop. Pl. 4 foot. 
73 S. AMPLEXICAV'LE (D. C. rapp. voy. 2. p. 80. suppl. fl. 
fr. p. 526. mem. cras. t. 7.) stems branched at the base, erect ; 
leaves terete, subulate, glabrous, dilated at the base into a stem- 
clasping membrane; cymes bifid; flowers remote, sessile along 
the branches of the cyme; petals 5-7, lanceolate, acute. Y. H. 
Native of Spain, south of France, Italy, Candia, &c. in dry 
mountain pastures. S. rostratum, Tenore, fl. neap. prod. p. 26, 
S. tenuifdlium, Sibth, prod. fl. grec. 1. p. 335. and Sieb. herb. 
cret. Sempervivum anémalum, Lag. nov. spec. 17. Flowers yel- 
low, alinost like those of S. refléxum. Sepals subulate, acute. 
Stem-clasping Stonecrop. Pl. 4 foot. 
74 S. RUPE'STRE (Lin. spec. p. 
618.) stems branched at the base, 
floriferous ones erect; leaves te- 
rete-subulate, glaucous, loosened 
at the base; sterile stems cylin- 
drical, densely imbricated ; flow- 
ers cymose, 5-7-petalled; sepals 
bluntish. 24.H. Native of Eu- 
rope, on walls and rocks. In 
England on St. Vincent’s rock, 
Bristol; on Chedder rocks, So- 
mersetshire, and upon walls about 
Darlington. Engl. bot. t. 170. 
—Dill. elth. 2. f. 333. Reich. 
icon. 3. f. 439. S. minus, Haw. 
in phil. mag. 1825. p. 174.? S. \ 
refléxum, D. C. pl. grass. t. 116. Flowers yellow (f. 29.). 
Rock Stonecrop. Fl. July, Aug. England. PI. 4 foot. 
75 S. sepTancuxa‘rE (Haw. syn. 116. and in phil. mag. 1824. 
p. 175.) glaucous ; leaves imbricating in 7 rows, incurved, 
spreading, middle-sized, acute. X4. H. Native of Europe. 
Flowers yellow. S. rupéstre 8, septangulare, D. C. prod. 3. p. 
407. S. rupéstre, D.C. pl. grass. t. 115. Very like S. cæru- 
léscens, but is distinguished by the shorter and hardly subulate 
leaves, and in being more branched, and the branches shorter. 
Seven-angled Stonecrop. Fl. June, July. Clt. 1795. Pl. + ft. 
76 S. aLBe’scens (Haw. rev. succ. p. 28.) stems branched at 
the base; flowers erect; leaves terete-subulate, glaucous, loos- 
ened at the base; sterile stems elongated, with spreading leaves ; 
flowers cymose, 5-7-petalled ; sepals lanceolate. y.H. Native 
of England and Denmark, on barren sandy hills and walls, In 
England, especially on the sides of some rough hills near Mil- 
denhall, Suffolk. S. glaúcum, Smith, engl. fl. 2. p. 321. engl. 
bot. 2471. but not of Waldst. et Kit. S. refléxum, fl. dan. t. 
113. Flowers yellow. ; 
Whitish-leaved Stonecrop. Fi. July, Aug. Brit. Pl. 4 foot. 
77 S. Forsrerta'num (Smith, comp. 71. engl. bot. 1802.) 
stems branched at the base; flowers erect; leaves semicylin- 
drical, bluntish, green tinged with red; sterile stems short ; 
leaves crowded, somewhat rosulate at the tops of the branches ; 
flowers cymose, 5-7-petalled ; sepals obtuse. %4. H. Native 
of Wales, on rocks at the falls of Rhydoll, near the Devil’s- 
bridge, Cardiganshire ; on the rocks of Hisval, overhanging the 
little valley of Nant-phrancon. : 8. p e can syn. p. 117. 
S. rupéstre, D. C. pl. grass. 115.? owers yellow. 
Fot Baies Fl. July, Aug. Wales. Pl. $ g 6 
78 S. REFLE'XUM (Lin. spec. 618. Smith, fl. brit. p. 4 ) 
stems branched at the base ; floriferous ones erect ; leaves jt 
subulate, green, loosened at the base; sterile shoots somew 
FIG, 29. 
