108 B 



Canadian Arctic Expedition, 1913- 18 



Of Rosa acicularis Lindl. a single specimen, a small branch with a well 

 preserved flower, was collected by Rev. I. 0. Stringer at the Mackenzie river 

 delta; the species has also been collected on the American coast of Bering strait, 

 and it is recorded by John Macoun from Fort Simpson on the Mackenzie river, 

 Fort Yukon, the Kuskokoin valley, and St. Michael's island, Alaska, the speci- 

 mens having been collected by Mr. Watson. The species is known, furthermore, 

 from Siberia, viz. : Davuria and Kamtchatka. 



Of the Papilionaceae thirteen species were collected by the expedition, 

 exactly one-third of the species known so far to have extended to the arctic 

 region. From Table 1 it will be noticed that three of these are circumpolar, 

 viz.: Astragalus alpinus, Phaca frigida, and Oxytropis campestris. However, 

 their distribution is so extremely scattered within the arctic region that they 

 hardly may be defined as circumpolar; for instance, on the north coast of Siberia, 

 Astragalus has only been reported from Dickson harbour (80° 58' E. Long.), 

 Phaca only from Preobrascheni island (113° 10' E. Long.), and Oxytropis only 

 from Dickson harbour. And the other species known from the Siberian coast 

 are just as rare, for instance: Oxytropis Mertensiana only at the mouth of the 

 river Olenek (120° E. Long.), 0. nigrescens only at the mouth of the river Kolyma 

 (161° E. Long.), besides Pitlekaj (173° 24' W. Long.) ; finally, Fidysarum obscurum 

 L. has only been reported from Pitlekaj, and Phaca alpina Wulf. (non Ledebour) 

 was discovered by Sujef on the shore of the Kara sea. 



To emphasize fully the arctic distribution of these Papilionaceae, Table 5, 

 showing the distribution of all the species of this family within the arctic region, 

 is inserted. It will be seen from this table that, so far, only 39 species have been 

 collected in this region. They represent 12 genera, with 13 species belonging to 

 Oxytropis, 7 to Astragalus, 4 to Vicia, 3 to Hedysarum; the other genera contain 

 only one or two species. 



