April, 1906.] Observations — Flora of the Shale Bluffs. 
499 
This is a very handsome little 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 smokv 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 bluffs 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 
mi.xed with other trees become quite frequent. Closer to the 
edge of the bluffs, in the dry usually well drained clav soil, the 
vegetation is decidedly xerophytic. This is readilv seen from 
the list of herbaceous plants found here : 
Agrostis hyemalis (Walt.) 
Danthoiiia spicata (L.) 
Poa compressa L. 
Potentilla Canadensis L. 
Linum Virginianum L. 
Polvgala 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 ^luhl. 
Solidago nemoralis Ait. 
Antennaria plantaginifolia (L.) 
Gnaphalium obtusifolium (L.) 
-\chillea Millefolium L. 
