Arctic Plants: Morphology and Synonymy 51 b 



Rhododendion lapponicutn (L.) Wahlenb. 



Some of the specimens are quite bushy but with the stems more or less 

 prostrate; as to the foliage and the flowers these agree in all respects with those 

 of the Greenland plant. 



Kalmia polifolia Wang. 



Seems to be very rare as only two small specimens were collected; the aerial 

 branches are erect, about 6 cm. high, and are mostly one-flowered; the leaves 

 are short and very narrow, and the specimens are even more reduced in size 

 than those which I have observed in the high mountains of Colorado above 

 timber line. 



Loiseleuria procumbens (L.) Desv. 



Only two specimens were found on the south coast of Coronation gulf, in 

 Epworth harbour. The denuded, twisted stem is quite thick and prostrate, 

 bearing at the apex many ascending branches with leaves and flowers of the 

 typical structure. 



Cassiope tetragona (L.) Don. 



Common, and collected at several stations; it varies much in height; from 

 8 to 22 cm.; the smallest specimens are from Camden bay; in these the prostrate 

 stem bears numerous ascending, crowded shoots with many flowers. Otherwise 

 the plants resemble those from Greenland. 



Arctostaphylos alpina (L.) Spreng. 



All the specimens collected show the characteristic habit of the species; in 

 fruit-bearing specimens from Bathurst inlet (August 25th) the leaves are of normal 

 size, measuring about 3 cm. in length and 1.2 cm. in width. 



VACCINIACEAE. 



Vaccinium uliginosum L. 



While all the specimens represent the variety microphyllum Lge., those 

 from Bernard harbour are the most peculiar, the length of the leaves averaging 

 only about 5 mm. 



V. Vitis-idaea L. var. pumilutn Hornem. 



The very small specimens agree exactly with the plant as it is developed in 

 other arctic countries; although collected as late as in August, the specimens 

 were all in bloom. 



PRIMULACEAE. 



Androsace Chamaejasme Host. 



The habit of this interesting little plant is the same as that of specimens 

 from the alpine region of the Rocky mountains. It actually represents an 

 undershrub with two types of shoots. The persisting, but very slender, primary 

 root is crowned with a dense rosette of leaves from the axils of some of which 

 long slender stolons -develop. These stolons are completely above ground and 

 consist of one or several stretched internodes the foliage of which is in the shape 

 of rosettes, but only the apical develops an inflorescence, a scape with a few- 

 flowered umbel, or it remains purely vegetative, giving rise to a secondary 

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