April, 1906.] Observations — Flora of the Shale Bluffs. 



499 



This is a very handsome Httle species collected at the Gulf 

 Biologic Station, Cameron, La., by Prof. J. S. Hine and Mr. J. 

 B. Garrett. It occurs among the growth of Iva frutescens 

 which abounds in lowland or swampy areas near the coast and 

 doubtless oviposits in this plant. While resembling pallida in 

 size and to some extent in coloration, it differs distinctly from 

 that species in sexual characters. The light green color, prom- 

 inent smoky margin on the oblique veins of elytra and the testa- 

 ceous upper surface of abdomen as well as shape of opercula, 

 form distinctive characters. Described from five males, one 

 female. 



ECOLOGICAL OBSERVATIONS ON THE FLORA OF THE 

 SHALE BLUFFS IN THE VICINITY OF COLUMBUS, 



OHIO. 



Walter Fischer. 



The Ohio and Olentangy shales crop out in various places 

 in this state, from the shores of Lake Erie in a line extending 

 through the Scioto valley to the Ohio River. During the past 

 summer and fall the writer has had an opportunity to study a 

 few of these exposures, which are found north of Columbus along 

 the Olentangy River and in the deep ravines leading into it from 

 the east. The district studied embraced an area about ten miles 

 in length by two in width and includes some of the best outcrops 

 in the state. 



The prevailing type of vegetation on the high dry land near 

 the bluff's is the open white oak forest which contains also red 

 and chestnut oaks, hickories, poplars and ashes. The under- 

 growth consists of straggling groups of papaw, Crataegus, black 

 haw and blackberry. Further back beech forests, more or less 

 mixed with other trees become quite frequent. Closer to the 

 edge of the bluffs, in the dry usually well drained clay soil, the 

 vegetation is decidedly xerophytic. This is readily seen from 

 the list of herbaceous plants found here: 



Agrostis hyemalis (Walt.) 

 Danthonia spicata (L.) 

 Poa compressa L. 

 Potentilla Canadensis L. 

 Linuni Virginianum L. 

 Polygala verticillata L. 

 Euphorbia corollata L. 

 Hedeoma pulegioides (L.) 

 Pedicularis canadensis L. 



Houstonia purpurea L. 

 Lobelia inflata L. 

 Hieracium venosum L. 

 Hieracium scarbum Michx. 

 Solidago ulmifolia Muhl. 

 Solidago nemoralis Ait. 

 Antennaria plantaginifolia (L.) 

 Gnaphalium obtusifolium (L.) 

 Achillea Millefolium L. 



