446 



CARYOPHYLLE&. XXXIV. CERASTIUM. 



West. ? C. alpinum, Hoppe, herb. Viv. Common peduncles 

 dichotomous. 



Var. ft, Jtlifdrme (Schleich. pi. 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. PI. | foot. 



57 C. IATIFOLIUM (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. I/. 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. tomentosum, Huds. ed. 1. p. 176. The whole 

 plant is clothed with tawny rigid hairs. 



Broad-leaved Mouse-ear Chickweed. Fl. June, July. Bri- 

 tain. PI. procumbent. 



58 C. GLACIALE (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. If. . H. Native of Switzerland on the 

 highest Alps near the limits of perpetual snow. C. uniflorum, 

 Thorn, dried plants. Perhaps only a variety of C. lattfolium. 



Icy Mouse-ear Chickweed. Fl. Ju. Jul. Clt. 1819. PL | ft. 



59 C. SYLVA'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. 1. 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.-J.ft. 



60 C. UTiGi6suM (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 1 ; 

 styles 5, long ; capsule exserted ; seed hardly tuberculated. 

 1 ? H. Native of France in the Bois de Bologne in arid dry 

 places. Flowers white. 



Litigious Mouse-ear Chickweed. Fl. May, June. PL ^ 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. If. . 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. repens, Lin. spec. 628 ? Roots creeping. 



Corn-feld Chickweed. Fl. May, Aug. Britain. PI. to 1 ft. 



62 C. STRI'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, y.. H. Native 

 of Europe on the Alps. Perhaps only a variety of C. arvense. 

 Root creeping. 



Var. a, suffruticosum (D. C. prod. 1. p. 419.) leaves very 

 narrow, smoothish. C. suffruticosum, Lin. spec. 629. C. lari- 

 cifolium, Vill. delph. 4. p. 644. 



Var. 13, molle (D. C. 1. c.) leaves very narrow, hairy. C. 

 molle, Vill. delph. 3. p. 644. 



Var. y, lineare (D. C. 1. c.) leaves linear-lanceolate, elon- 

 gated, acuminated, glabrous. C. lineare, All. ped. 2. p. 365. t. 

 88. f. 4. 



Var. S, commune (D. C. 1. c.) leaves linear, bluntish. C. 

 strictum, Lin. spec. 629 ? Centunculus angustifolius, Scop. earn. 

 1. t. 19. C. ambiguum, Fisch. in litt. 



Straight Mouse-ear Chickweed. Fl. May, Aug. Clt. 1793. 

 PL | foot. 



63 C. DIOI'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, y. . H. 

 Native of Spain. 



Dioecious-flowered Mouse-ear Chickweed. FL May, July. 

 Clt. 1766. PI. | to 1 foot. 



64 C. PENNSYLVA'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. If. . H. Native of Pennsyl- 

 vania on dry hills and rocks. Roots creeping. C. arvense, 

 Pursh. fl. amer. sept. 1. p. 321 ? Very like C. arvense, 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 1J ft. 



65 C. COLSMA'NNI (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. 1{. H. Native of 

 the Straits of Magellan. Perhaps a species of Spergularia. 



Colsmann's Mouse-ear Chickweed. Fl. June, July. Clt. 1827. 

 PI. | foot. 



66 C. NU'TANS (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. glutindsum, Nutt. gen. amer. 1. p. 291. but not of H. 

 B. et Kunth. Radical leaves spatulate, upper ones stem-clasping. 



Nodding-capsnled Mouse-ear Chickweed. Fl. June, July. 

 PL 1 foot. 



67 C. LEDEBOURIA HUM (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. }/ . H. 

 Native of Siberia. C. pilosum, Ledeb. acad. scienc. petersb. 5. 

 p. 514. no. 26. but not of Horn. 



Ledebour's Mouse-ear Chickweed. Fl. June, July. PL ft. 



68 C. FILIFORME (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. I/ . H. Native of Upper Styria. Panicle dichoto- 

 mous. Pedicels about equal in length to the calyx. 



Filiform-leaved Chickweed. Fl. June, July. 



69 C. RI'GIDUM (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. I/ . H. 

 Native of Siberia. The whole plant is clothed with stiff spread- 

 ing hairs. Stems straight, stiff, tall. 



Var. ft, Chamissoni (See Cham, in Schlecht. Linnaea 1. p. 61.) 

 leaves narrower and acute. All parts of the plant smaller. 

 I/ . H. Native of the island of Unalaschka. 



Stiff- stemmed Mouse-ear Chickweed. Fl. June, July. PL 

 2 feet. 



PL | foot. 



