WORLD-DISTRIBUTION OF THE BRITISH CARYOPHYLLACE^. 185 



here. S. glabra, Willd. (including the commonly cultivated S. pilifera, 

 De Cand.), appears to be a subspecies, distinguished by its larger petals. 



VIII. Sagina nivalis. — How far distinct from the last? 



VI. ? Sagina subulata. — Drumraond's plant from the Eocky Moun- 

 tains is -S'. saxatiUs, but Dr. Lyall gathered the true subulata in the 

 same region in the Cascade Mountains, 49° N. lat. Less decidedly 

 boreal in its general dispersion than saxatiUs. 



II. Sagina nodosa. 



I. Spergula arvensis.—Now universally diffused as a weed in tem- 

 perate regions ; Neilgherries, Ceylon, Abyssinia, Cape Colony, Aus- 

 tralia, etc. 



II. Ifonckeneja peploides. — Most or all the arctic specimens are H. 

 oblongifolia of Torrey and Gray, distinct from our plant as a subspe- 

 cies or well-marked variety. 



I. Spergularla marina {jnarginata). — Systematic value of the forms 

 in the genus difficult to appreciate. My own inclination, at present, 

 using the English botany scale, is to regard S. media as a variety of 

 rubra, and S. rupicola and mnrginata as subspecies. To this I refer 

 with confidence specimens from Afghanistan, Griffith! C\\i\i, Bridges / 

 New Zealand, Colensol Van Diemen's Land, Gimn! and of Kindberg's 

 plants, regard murinnm, arenarium, macrothecinm, and glandulosum as 

 synonyms or varieties. 



V. Spergularia rupicola. 



I. Spergularia media. — May be safely placed as south temperate. 

 Falkland Islands, Br. Hooker ! South Africa, Drege! but, as just in- 

 dicated, I fail in drawing any clear line between this and maritime 

 forms of rubra. Of Kindberg's plants, medium, salinum, and neglec- 

 tum may be safely joined under this head. 



I. Spergularia rubra. — Cape, Burchell ! Uruguay, Gibert ! Andes 

 of Ecuador, Spruce, 5444 ! 



VIII. Arenaria norvegica. — Seems to bear the same kind of rela- 

 tion to ciliata that rubella does to verna. Not a plant of the Alps, 

 Jura, or Pyrenees. Gathered in Spitzbergen by Captain Sabine. A. 

 gothica. Fries, appears to be a third subspecies, with a very restricted 

 range. 



I. Arenaria serpylli folia. — Australia, but probably introduced re- 

 cently. Frequent in India and all through temperate Asia to Japan ; 

 both the type and variety leptoclados. 



VOL. VIII. [jUNE 1^ 1870.] O 



