82 Ohio Naturalist. [Vol. 1, No. & 



room is granted free of charge to qualified investigators, and any- 

 one wishing to undertake investigation of biological problems will 

 be given all possible opportunity. Courses of study have been 

 designed especially for high school teachers and for advanced uni- 

 versity students, the former devoting themselves to methods of field 

 work and preservation of material for laboratory use, and acquiring 

 methods of laboratory woi'k in connection witli study of typical 

 forms. For tlie latter, advanced courses in embryology, morpho- 

 logy, entomology, plant ecology, botany, etc., are offered. The 

 students taking such courses can secure for them university credits 

 covering equivalent courses in the university curriculum. It is 

 needless to say chat the opportunities for field observation, collect- 

 ing, and the laboratory study of representative forms are most 

 favorable. For special advanced courses in embryology, and i^ar. 

 ticularly those pertaining to microscopical technique, the more 

 elaboi'ate equipment of the university is of course preferable. 



NOTES ON THE FLORA OF SANDUSKY. 

 W. A. Kellerman. 



The visitor or student at the Lake Laboratory will find in the 

 neighborhood of Sandusky a flora in many respects peculiar and 

 richer in species perhaps than in any other region of similar area in 

 the state of Ohio. For our knowledge of the Sandusky plants we are 

 indebted mainly to tlie continued and energ^tic explorations of E. 

 L. iMoseley, teacher of botany in the Sandusky High School. Our 

 visits to the region have been numerous, and many weeks have been 

 spent in herborizing during the last few seasons. Mr. Moseley's 

 Sandusky Flora (Ohio State Academy of Science, Special Papers 

 No. 1) and additions by myself and Mr. Griggs reported before the 

 Academy of Science, and published in The Ohio Naturalist, Vol. 

 1, fully represent our knowledge of this interesting flora to date. 



In the "Sandusky Flora," page 2, Mr. Moseley states that "the 

 surpassing richness of the Sandusky flora is not due to the fact that it 

 includes islands within its territory, for scarcely any of its species- 

 are confined to the islands; nor is it in a very large measure due to 

 the fact that it includes species tliat are confined to the lake shore ^ 

 but rather to peculiarities of climate and geological features, both 

 of whicli depend to some extent on the proximity of the lake." 



Space will allow reference to but few of the interesting and rarer 

 plants. On Cedar Point and a few other places the Prickly pear,. 

 Opuntia humifusa, appears in great abundance, but is reported for 

 no other stations in Oliio. Tiie illustration (Fig. 1 ) shows a patch of 

 this plant, and also indicates the sparse vegetation in the open sandy 



