178 SEVENTEENTH REPORT. 



In rich grounds on the banks of the Detroit River, No. 3849^ Sept. 

 2, 1914. 



Plantago lanceolata, Lin. Var. irrigua, Dene. 



Banks of Stoney Creek, No. 3924, Oct. 25, 1914. 



Plantago lanceolata, Lin. Var. eriophylla Webb. 



On stony or sandy grounds in the Keweenaw Peninsula where it is 

 very common, No. 3916, October 17, 1914; No. 2643, June 9, No. 2763, 

 June 30th, and No. 3017, Aug. 4, 1912, Parkedale Farm. 

 Galium aparine L. Var. Vaillantii (D. C.) Koch. 



Differing from the species only in its smaller size in all its parts. 

 FarAvell No. 3652, May 30, 1914, in rich muck lands on Parkedale 

 Farm. 



Solidago bicolor, Lin. 



In Michigan this is a very variable species, but several well defined 

 forms can be distinguished. The stems are simple up to the infloresence, 

 single or several from the same crown. The heads are 2 to 3^ lines high, 

 the involucral scales have a green midrib broadened above, are oblong 

 or obovate, rounded at top and often ciliate; mature achenes several 

 nerved, scabrous on the nerves and with or without a few appressed 

 hairs ; the lower cauline and root-leaves vary from obovate or oblanceo- 

 late to oval, oblong and lanceolate; cauline leaves below the infioresence 

 from 12 to 30; the ray flowers are white, cream color, yellow, or orange- 

 yellow; the upper-leaves are oblanceolate, oblong, or lanceolate passing 

 into the floral bracts, entire or minutely incurved denticulate; the 

 whole plant is more or less hirsute. The inflorescence is a simple or 

 branched thjTse, more or less interrupted. When all features are 

 considered it seems best to maintain the species intact as was done by 

 Torrey and Gray. The Michigan varieties are as follows: 



The typical plant is from 1 to 2 feet high, has the lower cauline and 

 root leaves oblanceolate, 1 to 4 inches long by ^ to 1| wide, and gradually 

 tapering into a short (1^ inches or less) broadly winged petiole, coarsely 

 dentate; upper cauline f. to 1| inches long, by j to | inches wide. In- 

 volucral scales greenish, head 2^ lines high, rays white. Infloresence 

 a slender, interrupted thyrse and globular clusters or short racemes in 

 the axils of the upper leaves; cauline leaves 12 to 24. Fields and hill- 

 sides at Rochester. Farwell, No. 3857, Sept. 7, 1914; No. 877, Sept. 

 27, 1895, Detroit; No. 3534, Oct. 5, 1913, Parkedale Farm. 



Solidago bicolor L. var. luteola N. Var. 



Similar; lower cauline and root leaves obovate or oblanceolate, the 

 blade shorter and broader, f to H inches wide by Ij to 2^ inches in 

 length, tapering into a .somewhat longer and more narrowly winged 

 petiole f to 1§ inches long; upper leaves smaller, an inch or less in 



