JOURNAL 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. io October 4, 1920 No. 16 



BOTANY. — New or noteworthy plants from northwestern Ontario. 

 I.^ O. E. Jennings, Carnegie Museum. (Communicated by 

 A. Wetmore.) 



During the past few years the writer has worked over and 

 named several thousands of specimens from among the collec- 

 tions which were made by Mrs. O. E. Jennings and himself 

 during five summers spent botanizing in Ontario to the north and 

 northwest of Lake Superior. 



Among the plants named are several which are believed to be 

 undescribed and a few others which are particularly noteworthy 

 for one reason or another. Rather than wait indefinitely for the 

 final completion of the work of studying and naming the rest of 

 the collections, it is thought best to publish some of the more 

 important items at this time. 



Lysias orbiculata var. pauciflora Jennings, var. nov. 



Leaves broadly elliptic, 6-7 cm. wide and about 14 cm. long, the 

 apex shortly acute; flowers few, about 6, the lip about 14-15 mm. 

 long, and the spur about 2.5 cm. long. 



Type collected in spruce-birch woods along the inlet at Magenet 

 Point, near the tip of Black Bay Peninsula, northwest Lake Superior, 

 Ontario, O. E. & G. K. Jennings, No. 4130, August 14, 1913. Her- 

 barium of the Carnegie Museum. 



Lysias orbiculata is quite variable as to the size and shape of the 

 leaves and the length of the spur. The common form, which we take 

 to be the typical form of the species, has large round leaves, and the 

 spurs of the flowers are not much longer than the combined length of 

 the pedicel and the ovary. The form here described as var. pauci- 

 flora presents a combination of differences from the typical form which 

 might easily characterize a species, but because of the occasional occur- 

 rence of forms of intermediate character it is thought best to regard 

 it, for the present at least, as a variety. 



1 Published by permission of the Director of the Carnegie Museum. Received 

 May 27, 1920. 



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