OUR NATIVE TREES AND SHRUBS. 47 



30c. Ameldnchier rotundifolia (Roem.). Round-leaved Juneberry. 



There appear to be many forms uniting the two preceding species with 

 this one, which is marked by its smaller size, rounded and nearly 

 straight-veined, long-petioled leaves, and later flowers and fruit. Com- 

 mon in Muskoka in various forms. 



30d. Ameldnchier oliyocarpa (Roem. ). Small Swamp Juneberry. 



Our smallest species, found in a few places in cold northern swamps. 

 It is present in Muskoka, but by is no means common. The clusters 

 never contain more than four flowers or berries, and the shrub rarely 

 exceeds five feet in height. 



30e. Ameldnchier alnifolia (Nutt.). Saskatoon. Western Juneberry. 



In May, 1900, I met with a Juneberry on a little island in Sparrow 

 Lake (an expansion of the Severn River) which differed so far from 

 our usual forms and approached so closely to authors' descriptions of 

 A. alnifolia that I sent specimens to Professor Macoun, asking if it could 

 belong to that species. He confirmed my identification as the eastern 

 form of the species, which had not been previously noticed east of 

 Lake Nipigon. It is interesting as our representative of the " Saska- 

 toon," the fruit-tree of the north-western plains. 



31a. Rlbes cynosbati (L.). Wild Gooseberry. 



The common gooseberry of open woods with prickly berries and 

 slender spines, mostly at leaf bases. 



31b. Rlbes oxyacantholdes (L. ). Smooth Gooseberry. 



Known by the smooth fruit, but the stems are only slightly prickly 

 and the pale spines are found singly below the leaf bases. It is not 

 common in the south. 



31c. Rlbes lactisfae (Poir.). Swamp Gooseberry. 



The branches of this species are very bristly and the spines at leaf bases 

 are mostly in groups. Common in cold northern swamps. 



31d. Rlbes prostratum (L'Her.). Fetid Currant. Skunk-berry. 



A straggling or prostrate shrub, frequent in northern woods. The 

 crushed leaves and bark have an offensive odor, and the taste of the 

 bristly red berries is equally unpleasant. The commonest currant in 

 Muskoka. 



31e. Rlbe* floridum (L'Her.). Wild Black Currant. 



Found throughout the Province, but not very abundant. Known by 

 the leaves, which are resinous-dotted beneath and often large. 



31f. Rlbes Hudsonianum (Richards). Northern Black Currant. 



In May, 1891, this species was found by Mr. Scott, now Principal of 

 the Toronto Normal School, on an expedition in company with the 



