MICHIGAN ACADEMY OF SCIENCE. 
101 
October 27th. 
Salix fragilis. 
Salix petiolaris. 
Solidago patula. 
THE MARL BED. 
A rather extensive marl bed crosses the base of the range in the 
northeast quarter of this section of the valley and extends up the 
valley for a quarter of a mile or so beyond our limits, where it spreads 
out and forms a broad low-lying swamp. There are two distinct sec- 
tions, differing quite noticeably in their liora. First, the marl bog or 
that part which was fed with cold springs; Second, the part which 
always has been dry and which is characterized by a dense growth of 
Potentilla fruticosa. 
THE MARL BOG. 
May 19th, 1912. 
Polygala paucifolia. 
Viola vagula. 
June 2nd. 
Carex conoidea. 
Triglocliin maritima. 
Valeriana edulis. 
Valeriana uliginosa. 
June 9th. 
Carex tetanica. 
Hypoxis hirsuta. 
Geum vernum. 
Senecio Balsamitae. 
June 11th. 
Selaginella apns. 
Carex diandra, Var. ramosa. 
Sarracenia purpurea. 
June 23rd. 
Carex granularis, Var. Haleana. 
Pogonia ophioglossoides. 
Limodorum tuberosum. 
Lathyrus palustris. 
July 4th. 
Li limn umbellatum. 
July 14th. 
Panicum implicatum. 
Tofielda glutinosa. 
Nununularia. quadriflorum. , 
July 28th. 
Zyga den us chi oran thus . 
Lobelia Kalmii. 
August 4th. 
Aletris farinosa. 
Par n assn s Ca ro 1 i n i a n a . 
Aster lateritlorus, Var. horizon talis. 
Aster lateritlorus, Var. pendulus. 
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