1161 6 { UdV 
'The Ohio T^aturalist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
LIBRARY 
NEW YORK 
BOTANICAL 
HARDEN. 
Volume XI. 
APRIL, 1911. 
No. 6. 
TABLE OF CONTENTS. 
Detmeks— The Vascular Plants of the Cranberry Bog in Buckeye Lake 305 
Hike— New Species of Diptera of the Genus Erax 307 
Dachnowski — The Ancient Vegetation of Ohio and its Ecological Conditions for 
Growth 312 
Stebki— Notes on the Anatomy and Physiology of the Unionidae — 331 
Glover — The Occurrence of Apple Bloch in Ohio 334 
THE VASCULAR PLANTS OF THE CRANBERRY BOG IN 
BUCKEYE LAKE. 
Freda Detmers. 
A floristic survey is being made of the bogs and swamps in 
Ohio; and as soon as it is complete the list of plants will be pub- 
lished. This present list includes the Vascular plants of the 
Cranberry Bog or Cranberry Island in Buckeye Lake. The list 
of Thallophyta and Bryophyta is not yet complete and will be 
published later. 
Osmunda regalis L. 
“ cinnamomea L. 
Dryopteris thelypteris (L.) A Gr. 
“ cristata (L.) A Gr. 
“ spinulosa (Retz.) Kuntze. 
Typha latifolia L. 
“ angustifolia L. 
Potamogeton natans L. 
“ zosteraefolius Schum. 
“ pusillus L. 
“ pectinatus L. 
on sp. 
Scheuchzeria palustris L. 
Sagittaria latifolia Willd. 
Echinochloa walteri (Pursh.) Nash. 
Panicum capillare L. 
Homalocenchrus oryzoides (L.)Poll. 
Muhlenbergia racemosa (Mx.) B. 
S. P. 
Calamagrostis canadensis (Michx.) 
Beauv. 
Eragrostis hypnoides (Lam.)B.S.P. 
Panicularia nervata (Willd.) Kuntze. 
Cyperus erythrorhizos Muhl . 
“ strigosus L. 
Dulichium arundinaceum (L.)Britt. 
Eleocharis obtusa Schultes. 
palustris (L.) R. & S. 
“ palustris glaucescens 
(Willd.) A. Gr. 
“ acicularis (L.) R. & S. 
tenuis (Willd.) Schultes. 
Scirpus lacustris L. 
“ fluviatilis (Torr.) A. Gr. 
“ cyperinus (L.) Kunth. 
Eryophorum virginicum L. 
Rynchospora alba (L.) Vahl. 
Carex alata Torr. 
“ scirpoides Schkuhr. 
“ retroflexa Muhl. 
“ vulpinoidea Michx. 
“ decomposita Muhl. 
“ diandrh Schrank. 
“ diandra ramosa (Boott.) 
Femald. 
“ stipata Muhl. 
“ aquatilis Wahl. 
“ stricta Lam. 
“ leptalea Wahl. 
“ limosa L. 
“ filiformis L. 
“ pseudo-cyperus L. 
“ comosa Boost. 
