830 BULLETIN DK l'hERBIER BOISSIER (2nie SÉR.). 1907 (7) 



like an Arenaria. In Seemann's fig. of Ihe dissecled flower, the ovary has 

 four styles, and Ihe five glands opposite Ihe sepals are very well 

 marked. 



Hab. St. Lawrence bay, in the land of Ihe Chukchis, in the Coast 

 Province of Eastern Siberia, la t. 65° N, long. 172" W {Chamisso, Esch- 

 scholtz); and on the opposite coast of Alaska, a t Cape Lisburne {Seemann, 

 1849-30, n. 1887, in Herb. Kew, — and labelled provisionally Stellaria f 

 Arctica). The only olher référence to the plant which I know of is in a 

 memoir by the recently deceased Prof. F. R. Kjellmann on the flora of 

 the east coast of Siberia, in the scientific reports of Nordenskiöld's 

 Vega Expedition (1882). 



Fenzl says "pelala semibiflda", but I have not had the opportunity of 

 verifying the character. The plant is certainly more readily distinguished 

 from St. cherleriœ Ihan is St. arenaria, and for this reason I have placed 

 St. arenaria between the two. As this paper is being revised in proof, 

 Mr. Boris Fedtschenko writes from Petersburg "spécimen is very 

 différent from St. pelrsea ". 



4. St. laevis Rohrb. in LinnEea, XXXYII, 275 (1872). 



Gaules plures dilTusi tortuosi pusilli, a basi ramosissimi duri peren- 

 nantes glabri foliorum emarcidorum vesligiis superne tecli. Rami 

 alterni ramulosi insequales glabri foliosi apice adscendentes. Folia- 

 4-6 mm., coriacea glabra nitida enervia crassiuscula ovata. basi connata, 

 acumine longo lanceolato acuto apice subincurvo mucronata, margine 

 setulis rectis ciliolata. Flores in ramulorum apice solitarii, sessiles, foliis- 

 numerosis, interioribus squamiformibus membranaceis dense involucrati, 

 minimi. Sepala vix 2 mm., oblongo-lanceolata obtusiuscula concaviuscula^ 

 ad lentem trinervia. Stamina 5, calyce parum breviora^ petalis alterna; 

 antherae flavse siibrotundse. 



Syn. — Cherleria laevis Barll. in Reliquise Haenkeanse, II, 12 (1827). 



Hab. Quebrada, in the mountains of Peru {Hœnke, — type-specimens^ 

 in the Botanical Department of the Prag Museum). 



Yar. 1, typica Williams, nom. nov. — ut supra. 



Var. 2, brevifolia Williams, nom. nov. — Folia duplo breviora, non 

 acuminata neque in aristulam apice producta, margine incrassato non 

 ciliata, sed apice deltoideo acutala. Sepala 'S mm., acuta concava obsolete 

 nervata. 



Syn. — St. aphanantha Griseb. Symb. Fl. Argentin, in Götting, 

 Abhandl. XXIY. 27 (1879). 



Hab. Cerro del Campo grande, in Argentina (type-specimens in Herb.. 

 Göttingen). 



The slight différences in the character of the leaves and sepals do not. 

 seem sufficient to separate it specifically from the Peruvian plant. 



