446 
West.? C. alpinum, Hoppe, herb. Viv. 
dichotomous. 
Var. B, filiforme (Schleich. pl. exsic.) stems 1-flowered ; pe- 
duncles elongated, deflexed. C. pedunculatum, Gaud. in litt. 
1814. Perhaps a proper species. 
Ovate-leaved Mouse-ear Chickweed. Fl. June, July. Clt, 
1816. Pl. 4 foot. 
57 C. tatiréxium (Lin. spec. 629.) plant hairy, rather viscid ; 
stems prostrate, 1, rarely 3-flowered ; flowers terminal ; pedun- 
cles longer than the flowers; leaves ovate; sepals ovate, with 
scarious margins ; petals twice the length of the calyx ; capsules 
ovate, turgid, protruding beyond the calyx. %.H. Native of 
the Alps of Switzerland, France, and Austria. On the Welsh 
and Scottish mountains. Smith, engl. bot. t. 473. Jacq. coll. 1. 
p. 256. t. 20. C. tomentdsum, Huds. ed. 1. p. 176. The whole 
plant is clothed with tawny rigid hairs. 
Broad-leaved Mouse-ear Chickweed. 
tain. Pl. procumbent. 
58 C. eracia‘te (Gaud. in litt. 1814. D. C. prod. 1. p. 419.) 
plant clothed with very clammy hairs; stems tufted, dense, 1- 
flowered ; peduncles length of the flowers; leaves elliptical or 
ovate; sepals ovate, with rather scarious margins ; petals twice 
as long as the calyx. %.H. Native of Switzerland on the 
highest Alps near the limits of perpetual snow. C. uniflorum, 
Thom. dried plants. Perhaps only a variety of C. latif dlium. 
Icy Mouse-ear Chickweed. Fl. Ju. Jul. Clt. 1819. Pl. 4 ft. 
59 C. sytva’ticum (Walds. et Kit. pl. hung. 1. p. 100. t. 97.) 
plant diffuse, creeping; stems dichotomously panicled ; lower 
leaves ovate, the rest oblong-lanceolate ; flowers erect on long 
peduncles ; petals semibifid, twice the length of the ovate-lan- 
ceolate sepals; capsules much longer than the calyx. %. H. 
Native of Hungary and Naples in woody valleys, and probably 
in Siberia. C. Sibiricum, Stev. in litt. The Hungarian plant 
is said to be a perennial while the Neapolitan one is annual. 
Wood Mouse-ear Chickweed. Fl. Ju. Jul. Clt. 1820. Pl. +4 ft. 
60 C. Livieidsum (Lois. not. ajout. 1 vol. 8vo.) hairy, very 
clammy, dark-green; stem ascending, much branched ; leaves 
small, ovate, acute ; flowers loosely-panicled ; peduncles longer 
than the calyx ; petals bifid, exceeding the calyx; stamens 10; 
styles 5, long; capsule exserted; seed hardly tuberculated. 
4%? H. Native of France in the Bois de Bologne in arid dry 
places. Flowers white. 
Litigious Mouse-ear Chickweed. Fl. May, June. Pl. 4 foot. 
61 C. arve’nse (Lin. spec. 628.) stem declinate; leaves 
linear-lanceolate, bluntish, rather pilose at the base; flowers 
dichotomously-panicled ; peduncles clothed with deflexed pu- 
bescence ; petals twice the length of the obtuse sepals; capsules 
oblong-cylindrical, shorter than the calyx. Y%. H. Native 
throughout Europe in fields, and on banks and hillocks on a 
gravelly or chalky soil, as well as on dry hills and rocks in 
Pennsylvania, according to Pursh. Smith, engl. bot. t. 93. 
Curt. lond. fasc. 6. t. 29. Fl. dan. t. 629.—Vaill. bot. par. t. 30. 
f. 4,5. C. répens, Lin. spec. 628? Roots creeping. 
Corn-field Chickweed. Fl. May, Aug. Britain. Pl. 4 to 1 ft. 
62 C. srri’ctum (Lin. spec. 629? D.C. fl. fr. 5. p. 610.) 
stems declinate; leaves almost linear, acuminated, glabrous or 
rather hairy ; peduncles clothed with glandular hairs; petals 
twice the length of the calyx ; capsules oblong. %.H. Native 
of Europe on the Alps. Perhaps only a variety of C. arvénse. 
Root creeping. 
Var. a, suffruticdsum (D. C. prod. 1. p. 419.) leaves very 
narrow, smoothish. C. suffruticOsum, Lin. spec. 629. C. lari- 
cifolium, Vill. delph. 4. p. 644. 
Var. B, mélle (D.C. 1. c.) leaves very narrow, hairy. C. 
molle, Vill. delph. 3. p. 644, 
Common peduncles 
Fl. June, July. Bri- 
CARYOPHYLLEÆ. XXXIV. CERASTIUM. 
Var. y, lineàre (D. C. 1. c.) leaves linear-lanceolate, elon- 
gated, acuminated, glabrous. C. lineàre, All. ped. 2. p. 365. t. 
88. f. 4. 
Var. ò commine (D.C. 1. c.) leaves linear, bluntish. C, 
strictum, Lin. spec.629 ? Centúnculus angustifòlius, Scop. carn. 
l.t. 19. C. ambiguum, Fisch. in litt. 
Straight Mouse-ear Chickweed. Fl. May, Aug. Clt. 1793. 
Pl. 4 foot. 
63 C. ptor’cum (Ait. hort. kew. ed. 1. vol. 2. p. 120. ed. 2. 
vol. 3. p. 137.) plant hairy and viscid; leaves lanceolate ; 
flowers dioecious; petals 3 times longer than the calyx. %.H. 
Native of Spain. 
Dioecious-flowered Mouse-ear Chickweed. Fl. May, July. 
Clt. 1766. Pl. 5 to 1 foot. 
64 C. Pennsytva’nicum (Horn. hort. hafn. p. 435.) stems 
prostrate, and are as well as linear-lanceolate leaves pubescent ; 
corolla twice the length of the calyx ; panicle dichotomous ; 
flowers on very long peduncles. 2. H. Native of Pennsyl- 
vania on dry hills and rocks. Roots creeping. C. arvénse, 
Pursh. fl. amer. sept. 1. p. 321? Very like C. arvénse, but 
differing in the petals being narrower and the capsules globose. 
Perhaps only a variety of C. strictum. 
Pennsylvanian Chickweed. Fl. Ju. July. Clt. 1810. Pl. 13 ft. 
65 C. Cousma’nnt (Lehm. ex Spreng. syst. 2. p. 418.) stem 
straight; leaves in fascicled whorls, reflexed, oblong-linear, 
smoothish ; peduncles terminal, subcorymbose ; petals entire, 
thrice the length of the bluntish sepals. 2%. H. Native of 
the Straits of Magellan. Perhaps a species of Spergularia. 
Colsmann’s Mouse-ear Chickweed. Fl. June, July. Clt. 1827. 
Pl. 4 foot. ; 
66 C. nu'rans (Rafin. prec. p. 36.) stem erect, clothed with 
clammy pubescence ; leaves linear-oblong, acute ; flowers rather 
umbellate, on long peduncles; petals exceeding the calyx in 
length ; capsules nodding, twice the length of the calyx. ©. H 
Native of Pennsylvania. C. longipedunculatum, Muhl. cat. 
1813. C. glutinésum, Nutt. gen. amer. 1. p. 291. but not of H, 
B.et Kunth. Radical leaves spatulate, upper ones stem-clasping. 
Nodding-capsuled Mouse-ear Chickweed. Fl. June, July. 
Pl. 1 foot. 
67 C. Levesouria'num (Ser. mss. in D.C. prod. 1. p. 420.) 
stem erect, pilose ; leaves oblong, obtuse, under surface glau- 
cous; flowers 2-3, erect, nodding after flowering ; petals 3- 
times longer than the calyx; sepals obtuse, with membrana- 
ceous margins ; capsules oblong, longer than the calyx. %- 
Native of Siberia. C. pilésum, Ledeb. acad. scienc. petersb. 5. 
p. 514. no. 26. but not of Horn. 
Ledebour’s Mouse-ear Chickweed. Fl. June, July. Pl. 3 ft. 
68 C. riurdrme (Vest. in fl. 1820. p. 353.) stems tufted; 
leaves filiform, trigonal, fleshy; sepals lanceolate ; petals twice 
the length of the calyx; capsules oblong, exceeding the calyx 
in length. 2.H. Native of Upper Styria. Panicle dichoto- 
mous. Pedicels about equal in length to the calyx. 
Filiform-leaved Chickweed. Fl. June, July. Pl. 4 foot. 
69 C. rrcrwum (Ledeb. mem. acad. petersb. 5. p. 514. no. 
25.) plant hairy; stem erect, very simple at the base, but 
forked at the apex; leaves oblong, acute ; peduncles elongated ; 
sepals lanceolate, acute; petals bifid, longer than the calyx; 
capsules oblong, shining, twice as long as the calyx. Y. 1. 
Native of Siberia. The whole plant is clothed with stiff spread- 
ing hairs. Stems straight, stiff, tall. 1.) 
Var. B, Chamissoni (See Cham. in Schlecht. Linnea 1. p- 61. 
leaves narrower and acute. All parts of the plant smaller. 
4. H. Native of the island of Unalaschka. 
(Sub stemmed Mouse-ear Chickweed. FI. June, July. Pl. 
2 feet. 
