92 BRITISH BOTANY. 



bearing in tlieir axils tufts of shorter leaves. Peduncles erect, 

 about as long as the interuodes. Sepals ovate-obtuse. Petals 

 three times as long as the sepals. Stamens 10. Styles 5. Seeds 

 scarcely grooved on the back^ depressed on the sides. Smith 

 says, "An Arenaria in habit and everything else but the 5 styles 

 and 5 valves of the capsule, which last is seldom perfected." 

 In moistj sandy or turfy ground. Perennial ; July, August. 



Sub-Tribe 2.— I1UJLSIN:EM— Calyx 4-5 -parted; styles 2-3; valves 

 alternate with the sepals or opposite to the inner ones when the 

 sepals are more numerous than the valves. 



BuFFONiA, Lin. — Calyx 4-parted. Petals 4, entire or 2- 

 toothed. Stamens 4, opposite to the sepals, or 8, and then oppo- 

 site and alternate, inserted on a disc which surrounds the ovary 

 (perigynous disc). Styles 2, opposite to the 2 valves. Seeds 2, 

 erect, basilar. 



B. tenuifolia, Lin. — e.b. 1313. l.b.s, excluded species^ page 

 16. 



Roots slender, fibrous. Stem alternately branched, spreading. 

 Leaves awl-shaped (subulate). Flowers on rough pedicels, in a 

 thyrse (a panicle tapering at both ends) . Sejials lanceolate, acu- 

 minate (an extended point), with three confluent nerves. Petals 

 much shorter than the calyx. Filaments and styles very short. 

 Seeds minute, scarcely tubercular. 



Found near Boston lay Plukenet, and on Hounslow Heath by 

 Mr. Doody. Comp. Ray's Synopsis by Dillenius. Not found 

 since. Annual; June. 



Alsine, Wahl. — Annual or perennial plants, with linear, su- 

 bulate, or setaceous leaves; these are often axillary and tufted. 

 Flowers white. Sepals 5, rarely 4. Petals 5, rarely 4, or none 

 by abortion. Stamens 10, rarely fewer. Styles 3, opposite to 

 the external sepals (sometimes 2-4—5). Valves as many as stig- 

 mas (styles), opposite to the inner sepals (alternate when the 

 sepals exceed in number the valves). Seeds numerous, reni- 

 form. 



A. tenuifolia, Crantz. — Arenaria tenuifolia, Lin. and Lond. 

 Catalogue. — e.b. 219. l.bs. 179. 



A. 6. C. 15. Lat. 50-53°. Alt. 0-100 yds. Tem. 51-48°. 



Roots annual. Stems usually several, slender, rigid, erect or 

 difliise, forked and leafy. Leaves linear, subidatc, usually with- 



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