JENNINGS: PLANTS FROM NORTHWESTERN ONTARIO 457 



General Distribution : Newfoundland to British Columbia and south 

 to Florida, New Mexico, and Oregon. Northwards Macoun notes 

 that it reaches Lake Athabasca. 



Scutellaria lateriflora var. axillaris Jennings, var. nov. 



Similar to Scutellaria lateriflora Linnaeus except that the flowers are 

 single, and in the axils of the large stem leaves, and of the leaves on the 

 slender branches, these latter leaves being ovate and longer than the 

 flowers even at the tips of the branches. 



Found in but one locality, a black ash swamp at the upper end of 

 Pelican Lake, Sioux Lookout, Ontario, O. E. & G. K. Jennings, Aug. 

 18, 1916, No. 11,022. Type in Herbarium Carnegie Museum. Typical 

 lateriflora had been found in the same swamp in 1914 and from these 

 the specimens collected in 191 6 difi"er quite markedly in being somewhat 

 larger, much more branched, the leaves of the branches being mainly 

 large like the stem leaves with single flowers in their axils, the ovate 

 leaves being longer than the flowers even towards the tips of the branches. 



Stachys palustris Linnaeus. 



The writer has not seen from North America what he would regard as 

 the typical form of this species, but it seems to be well shown by a 

 specimen studied from Bex, Canton Vaud, Switzerland, Aug. 15, 1887 

 (Herbier Mouillef arine) . In this form the stem is more or less com- 

 pletely covered by a fine and decidedly appressed pubescence, mixed 

 on the angles of the stem with longer stiff and spreading or reflexed 

 hairs. None of the plants found in northwestern Ontario agrees in 

 these characters with the typical form, and there seem to be further 

 differences in the characters of the leaves and flowers also. The tenui- 

 folia-aspera type, such as comprises most of the Stachys specimens seen 

 from Western Pennsylvania, appears not to be present in the region 

 north and west of Lake Superior, but in that latter region the plants 

 seem best to be regarded as varieties of one widely distributed and 

 variable species, and are perhaps best grouped with the forms described 

 by Rydberg and by Greene (5. ampla Rydberg, 5. teucriformis Ryd- 

 berg, and 5. scopulorum Greene) from the western plains and Rocky 

 Mountains of the United States and Canada. The accompanying 

 key will serve to differentiate the three forms found in northwestern 

 Ontario : 



Key to Stachys in northwestern Ontario. 



Bright green; leaves rather sharply acute to acuminate, the larger 

 ones bright green about 8 cm. long by 2 cm. wide, appressed- 

 pubescent above S. palustris var. pubenda. 



Bright or light green; often decumbent, stem smooth on lower part; 

 leaves obtuse to bluntly acute, smooth above, on flowering stem 

 not over about 6 cm. long by i .6 cm. wide. . 5. palustris var. macrocalyx. 



Whole plant ashy-green; the fine whitish pubescence, more or 

 less glandular-puberulent above; leaves obtuse to bluntly acute, 

 rather finely crenate-serrate, not over 7 cm. long by 2 cm. 

 wide 5. palustris var. nipigonensis. 



