CERASTITTM.] CARYOPHYLLE^!. 55 



Walls and banks ; ascending to near 1,000 ft. in Yorkshire ; fl. March-May. 

 Stem 1-10 in., erect or decumbent, sometimes nearly glabrous, branched 

 from the base. Leaves as in C. tetratidmm. Petals erose, with simple veins, 

 shorter than the sepals. Stamens 4-5, or 10. Capsule exserted. DISTEIB. 

 Europe, N. Africa. Flowers long before C. viscosum. 



VAR. ? pu'milum, Curtis (sp.) ; upper bracts with narrow membranous edges, 

 petals notched, veins branched, fruiting pedicel short curved, capsule 

 curved. C.glutino'sum, Fries. Diy banks, rare, I. of Wight, Bristol, Surrey. 

 Intermediate in many points between C. tetrandrum and semidecandrum. 



4. C. glomera'tum, Thuillier ; cymes at first subcapitate, fruiting 

 pedicels suberect shorter than the sepals, bracts all herbaceous, sepals 

 acute with few glands and narrow membranous borders, petals as long as 

 the sepals 2 -fid rarely 0, capsule twice as long as the sepals curved. C. vul- 

 ya'tum, L. , and vised sum, L. in part. 



Dry places, ascending to 1,000 ft. in Westmoreland and Scotland ; fl. April- 

 Sept. Habit of the preceding, but usually larger, less glandular and 

 cymes more fascicled. DISTHIB. Europe (Arctic), N. Africa, W. Asia to the 

 Himalaya, Iceland, Greenland, &c. ; introd. in U. States. 



5. C. trivia'le, Link ; cymes lax, pedicels longer than the sepals re- 

 flexed between flowering and fruiting, primary bracts wholly herbaceous, 

 margins of secondary sometimes membranous, sepals obtuse margins broad 

 membranous, petals 2-fid, capsule twice as long as the sepals curved. G. 

 viscosum L. of Hook, and Am. 



Waste places ; ascending to 3,600 ft. in Scotland' ; fl. April- Aug. Similar to 

 C. fflonwratum, but usually perennial, often with leafy barren shoots. Syme 

 alludes to an exotic alpine form that has petals twice as long as the sepals. 

 All Europe from the Arctic circle southwards, N. and W. Asia to Spits- 

 bergen and the Himalaya, N. Africa ; introd. in U. States. 



VAR. 1, trivia'le proper; perennial, decandrous, hairs not glandular, sepals 

 pubescent. VAR. 2, holosteoi'des, Fries (sp.) ; perennial, stem with only 2 

 lines of pubescence, sepals glabrous. Newcastle and Perth. VAR. 3, pen- 

 tandrum ; annual, pentandrous, capsule shorter, sepals as in TAR. 1. Sea- 

 shores. 

 ** Perennial, doimy or woolly. Petals 5, twice as long as the sepals, 2-fid. 



6. C. arven'se, L. ; stems hairy all round, leaves linear-lanceolate, bracts 

 and sepals subacute, margins and tip membranous, seeds sharply tubercled. 

 Sandy fields and waste places, not uncommon in England, rarer in Scotland ; 



local in Ireland; fl. April -Aug. Branches 6-10 in., tufted, ascending. 

 Leaves crowded on the basal shoots. Cymes many -flowered. Sepals oblong- 

 lanceolate, glandular. Capsule a little longer than the sepals. DISTRIB. 

 Europe (Arctic), N. Africa, Siberia, W. Asia to the Himalaya, N. America, 

 Fuegia, Chili. 



VAR. 1, pubes'cens, Syme ; leaves soft and pubescent, cymes 3-10-flowered. 

 VAR. 2, Andreu'sii, Syme ; leaves rigid glabrescent, midrib strong below, 

 flowers subsolitary. 



7. C. alpi'num, L. ; stems hairy all round, leaves ovate or oblong- 

 ovate obtuse pubescent, cymes dichotomous often 1-flowered, bracts her- 

 baceous obtuse, sepals with often a faint membranous margin, seeds 

 sharply tubercled. 



