CARYOPHYLLE&. XXXIV. CERASTIUM. 



443 



blunt ; flowers umbellately glomerate. C. ovale, Pers. ench. 1 . 

 p. 521. 



Var. y, Americanum (Ser. mss. in D. C. prod. 1. p. 416.) 

 stem very short, few-flowered ; leaves imbricate. C. pumilum, 

 Rafin. in litt. but not of Curt. lond. C. semidecandrum of 

 American authors. . H. Native of North America on dry, 

 barren, and sunny hills ; frequent in Pennsylvania and Virginia. 



Var. S, tenellum (Ser. mss. in D. C. prod. 1. p. 416.) plant 

 very minute, filiform; stems 1-2-flowered. . H. Native 

 about Geneva in sandy places. C. tenellum, Gaud. fl. helv. mss. 



Common Mouse-ear Chickweed. Fl. April, July. Britain. 

 PI. -| to |^ foot. 



15 C. VISCOSUM (Lin. spec. 627.) plant hairy and clammy, 

 dark-green ; stems recumbent ; leaves lanceolate-oblong ; flowers 

 dichotomously- umbellate ; peduncles and petals equal in length 

 with the calyx ; capsules rather pendulous, terete, twice the 

 length of the calyx. 7. H. Native of most parts of Europe 

 in meadows, pastures, waste ground and on walls ; very common 

 also in North America from Canada to Carolina (Pursh). Plen- 

 tiful in Britain. Smith, engl. bot. t. 790. C. vulgatum, Huds. 

 200. Bieb. fl. taur. and suppl. no. 883. Curt. lond. fasc. 2. 

 t. 34. C. sylvaticum, Schleich. exsic. C. obscurum, Chaub. 

 in St. Amans. fl. agen. p. 180. bouq. t. 4. f. 1. 



Clammy Mouse-ear Chickweed. Fl. May, Sept. Britain. 

 PI. recumbent. 



16 C. HOLOSTEOI V DES (Fries, nov. fl. succ. III.) stem pubes- 

 cent on one side ; peduncles pilose ; leaves oblong, glabrous ; 

 petals shorter than the calyx ; margins of calyx scariose. TJ. . H. 

 Native of Sweden. Horn. hort. hafn. suppl. p. 138. 



Holosteum-like House-ear Chickweed. Fl. May, July. Clt. 

 1818. PI. | foot. 



17 C. STRIOO'SUM (Fries, nov. fl. succ. III.) stem erect; leaves 

 oblong, obtuse, strigose ; flowers somewhat capitate ; sepals 

 lanceolate, hispid, greatly exceeding the petals in length. If. 1 H. 

 Native of Sweden. 



Str igose Mouse-ear Chickweed. PI. -y to \ foot. 



18 C. PELLU'CIDUM (Chaubard, in St. Amans. fl. agen. p. 181.) 

 bouq. t. 4. f. 2.) plant villous and clammy ; stems erect ; leaves 

 ovate- roundish ; peduncles 3 or 4 times longer than the calyx ; 

 bracteas of the universal forks rather membranaceous, pellucid ; 

 petals longer than the calyx. Q. H. Native of sandy places 

 towards Agen. Perhaps only a variety of C. semidecandrum. 

 Flowers pentandrous. 



Pellucid-leaved Mouse-ear Chickweed. Fl. April, May. 

 PI. | foot. 



19 C. SEMIDECA'NDRUM (Lin. spec. 627.) plant hairy, viscid; 

 stems erect ; leaves ovate-lanceolate ; flowers pentandrous, di- 

 chotomously-umbellate ; peduncles longer than the calyx ; petals 

 slightly cloven ; capsules terete, deflexed after flowering, twice 

 the length of the calyx. Q. H. Native of most parts of 

 Europe in waste and sandy ground ; also on walls in the out- 

 skirts of towns or villages, very frequent. Plentiful in Britain. 

 Smith, engl. bot. t. 1630. Curt. lond. fasc. 2. t. 33. Vaill. 

 bot. par. t. 30. f. 2. 



Var. {3, pumilum (Curt. lond. fasc. 6. t. 30.) petals cloven a 

 third of their length. . H. On dry banks near Croydon, 

 Surrey. 



Var. y, alsinoides (D. C. fl. fr. 4. p. 776.) calycine lobes 

 scariose on the margins and apices. C. alsinoides, Pers. ench. 

 1. p. 521. . H. Native about Montpelier. 



Semidecandrous Mouse-ear Chickweed. Fl. March, April. 

 Britain. PI. ^ foot. 



20 C. PENTA'NDRUM (Lin. spec. 627.) plant procumbent, and 

 rather clammy ; radical leaves spatulate ; cauline ones oval- 

 orbicular ; segments of calyx acuminated, longer than the slightly 

 cloven petals ; capsules shorter than the pedicels. 0. H. 



Native of Spain and Tauria among rubbish. Bieb. fl. taur. 1 

 p. 359. suppl. p. 319. Perhaps a mere variety of the last. 



Pentandrous Mouse-ear Chickweed. Fl. April, May. Clt. 

 1821. PL foot. 



21 C. ANDRO'SACEUM (Ser. mss. in D. C. prod. 1. p. 416.) 

 plant very small, and very hairy ; leaves ovate ; stem dichoto- 

 mous ; flowers rather capitate in threes on stalks, involucrate at 

 the base ; segments of calyx narrow, very acute. .H. Native 

 about Constantinople. C. pilosum, Castagne in litt. but not of 

 Horn, nor Ledeb. Habit of Androsace villosa. 



Androsace-like Mouse-ear Chickweed. Fl. April, May. PI. 

 I foot. 



22 C. GRA'CILE (Duf. in ann. gen. sc. ph. 7. p. 304.) plant 

 erect, slender, dichotomous, clothed with clammy pubescence ; 

 lower leaves ovate, stalked, upper ones ovate-lanceolate, sessile ; 

 flowers solitary, distant ; peduncles hardly longer than the 

 flowers, fruit-bearing ones deflexed ; corolla length of calyx ; 

 capsules protruding, oblong; stamens either 5 or 10. . H. 

 Native of Spain on rocks at a place called La Sierra de Vernisa, 

 near St. Philip. Very like C. pentdndrum or C. semidecandrum. 



Slender Mouse-ear Chickweed. Fl. May, July. Clt. 1818. 

 PI. i foot. 



23 C. BRACHYPE'TALUM (Desp. in Pers. ench. 1. p. 520.) 

 stem erect, tomentose, dichotomous ; leaves ovate ; flowers 

 panicled ; peduncles longer than the flowers ; calyx villous, 

 longer than the petals ; capsules hardly exceeding the length of 

 the calyx. 0. H. Native of Europe among rubbish. D. C. 

 fl. fr. 4. p. 777. icon. pi. gall. t. 44. C. canescens, Horn, ex 

 Spreng. in herb. Balb. Stems and leaves very hairy. 



Short-petalled Mouse-ear Chickweed. Fl. April, May. Clt. 

 1816. PI. ^ to | foot. 



24 C. SPATULA'TUM (Pers. ench. 1. p. 520.) stem simple, 

 rather villous ; leaves hairy, lower ones obovately- spatulate, 

 stalked, cauline ones somewhat ovate, sessile ; flowers glomerate. 

 . H. Native of Jamaica. Capsules a little longer than the calyx. 



Spatulate-leaved. Mouse-ear Chickweed. Fl. June, July. 

 PI. i to \ foot. 



25 C. FU'LVUM (Rafin. prec. p. 36. journ. bot. 1814. p. 269.) 

 plant clothed with fulvous hairs ; stem erect, angular ; leaves 

 obtuse ; flowers dichotomous ; sepals lanceolate, acute ; petals 

 equal in length to the calyx ; capsules nodding, arched. . H. 

 Native of Pennsylvania and Virginia. 



Fulvous-haired Mouse-ear Chickweed. Fl. May, June. PI. 

 | to | foot. 



26 C. MURA'LE (Desp. in B.C. fl. fr. 5. p. 609.) plant hairy, 

 erectish, stiff; leaves ovate-oblong, acute, numerous ; flowers 

 length of pedicels, disposed in bundles ; petals emarginate, equal 

 in length to the calyx ; capsules oblong, scarcely exceeding the 

 calyx in length. 2? H. Native of France. 



Wall Mouse-ear Chickweed. PL \ to -J- foot. 



27 C. DIFFU'SUM (Pers. ench. 1. p. 520.) stem much branched, 

 villous, opaque, diffuse ; leaves ovate-lanceolate, rather hispid ; 

 flowers dichotomously panicled, numerous ; pedicels length of 

 flowers ; petals emarginate, shorter than the calyx ; capsules 

 obovate, about equal in length to the calyx. "%. . H. Native ? 

 Habit of Stellaria arenaria. 



Diffuse Mouse-ear Chickweed. Fl. April, Sept. Clt. 1820. 

 PI. \ to $ foot. 



* * Capsules egg-shaped, equalling the calyx in length, or 

 shorter. 



28 C. SERPYLLIFOLIUM (Willd. enum. suppl. p. 26 ? Link, 

 enum. 1. p. 433.) stem decumbent at the base, hairy, rather 

 clammy ; leaves lanceolate, tapering to the base, distant ; flowers 

 dichotomous, on short pedicels, with a solitary flower in each 



3 1,2 



