18 C. H. OSTENFEI-P. 



Bcsidt's tilis lri|i|t' liyhiitl soinc sp(Mitii('iis ai'c riainrd liy I'loderus: 



S. arctica x glauca. Tlu-y cariu' from: 



Wasb.L.: PutltTsuak (L. K., 13. VIII) and Morris Bay (5. VI). 

 liii^l. L.: Advanco Hav (27. VI); Marshali Bay (5. — 6. VII) and the interior 

 near the inland ice (24. \'I1). Most of them were incomplete and sterile specimens. 



Soinc incoinplotc specimens from a moraine in the interior south 

 of Henssela«'r Bay (2.). \ I i ) are named S. arctica, f. nana with tlie note: 

 the miuli jiromiiu'iit tij>s of Ihr leaves suggest a faiiil tiacr of .S', chlo- 

 roclados. 



Dl'. I>. FlodeiMis tclls me in a letter tliat the result of liis examina- 

 tion was "the not <|nite unexpected observation (hal A'. cltloroclados 

 also in these high-arctic regions is a rarely wanting and often strongly 

 pronounced factor in the Salix-flora". The same was the case with 

 regard to the Wolstenholme .Sonnd area (ofr. Medd. Crroid. IAI\' (1923) 

 p. 204 1. 



To jiidge from the localities represented it seems to me interesting 

 that the poor material from W^ashington Land did not contain any 

 trace of S. chlorocJados. Perhaps the Salix-iXordi north of the Hnmboldt 

 Glacier is either S. arctica or S. arctica x glauca, a supposition whieh 

 agrees with the records from the north coast (ofr. Medd. Grønl. LXIV 

 (1923) p. 240). 



73. Salix herbacea L. 



-Muich. S.: Igdloluarsuit, bog at the talus of a fowling dift" (30. VII, with 

 young fruits); dry "fjeldmark" in humus-rich sand and gravel (30. VII, with 

 young fruits); dry hcath in a valley behind Igdloluarsuit (9. VIII. no fruits). 



Saxifragaceæ. 



74. Saxifraga cernua L. 



Wash. L.: Putler.suak (L. K., 13. VIII. lmlt)i]s fallen ..IT). 



Ingl. L.: Mar.shall Bay (2. — 5. VII, bulbils not yct fully developed, nor 

 flower); Ren.s.selaer Bay (9. VII, bulbils and terminal flowers developed). 



Murch. J^.: Pitoravik (10. XI, winter .stage); old liou.se-jilaces at Igdlo- 

 luarsuit (27. Vin. Indbils ripe and loosening). 



Ih. Saxifraga flagellaris Willd. 



Ingl. L.: Ren.s.selaer Bay, common (9. — 18. \'I1. in full tl(»\v. and with well 

 developed .stolons); in the interior s. of Kensselaer Bay (23. VII. in tiow.) 



7t). Saxifraga groenlandica L., var. uniflora (II. P>r.) Simmons. 



Wash. L.: Putler.suak (L. K.. 13. VIII. with fruits); Cape Forbes (L. K., 

 16. VIII, fragm. ordy). 



Ingl. L.: Advance Bay (27. VI, flow. bcgun); Marshali Bay (2. VII, flow.); 

 Rensselaer Bay, damp .slope (9. VII, in full flow.). 



