32 GRIGGS: OBSERVATIONS ON THE BEHAVIOR 
SPECIES NEXT KNOWN STATION 
A CREOGHTNCS URE TOG 69 650 TK g = ia 908 sais 88 Only Ohio Station. 
Co SRIMOSE sis rhe Re ey Since ek 8 ass Clermo ‘ 
Pi Vele Peas SUNs0GnE ee CES a rie 
PE SCICDIAS OIPTO GOI i ian aie ee ik eh eis Summit Co 
A splenium- monianum eed ne A Summit Co 
Asalen ated ks Bees Poe a eee bie Lees Wel os Station. 
FRAUD MUSED oo A od POOR OS UR Ved 4 
CisCdle BIPANE 08 oe Oy ee PORE OL ahs nes oe (75 miles) and Summit Co, 
Cypripedium vices PE eee te ce ey he whe Said formerly to have occurred in 
Licking Co. immediately to the 
north.* Nearest station known to 
me, Medina Co. 
PIDAECUINCOR DACA i ore a ny ae Oo be ee Clarke Co. (75 miles) 
ALOFT DVOMROT CMM (ono rs ee Ne eas, Only Ohio Station 
Eupatorium 1oluniipona. rc. eee Only Ohio Station 
oe 6 SOUT! DT UMIROMAE oe ihe eae St ele Clermont and Ashtabula Counties 
BYCOPORUM: CLAVGIUME er os os he ae Oe Co 
Jf UNCOIMES. SORMENSTS 20 est ia ees es ek Se GP Co 
WUIR RECIFE iat Bs oe oe ig ree Lorain 
Phacelia dahpie 2055 Sn as oe aa Only ois Station. 
P. BBO Oa ee nea ae aa Only Ohio Station 
Pyrola rotundifolia. ucts be ere ee ee Summit Co 
Polygonum aripouien aso aes a ee Wayne Co 
Rhododendron MExtvgeunt : 60846 cs NS Only Ohio Station. 
Silene rolUundspounna = ie aes oe Hocking and Jackson Counties only. 
cinaieaeodeg rere Be Wy rls Gi ay Gates ee as Highland Co 
MD ete ais GA so Molen Fealce o's & Only Ohio Station yet known. 
Viet pens ae Pag ce oe eee eR Lee Cuyahog 
There are on the other hand many species which are abundant 
all along the edges of their ranges. The plants in this category 
contrast strongly with the outliers, which are plants of diverse 
geographical affinity, in that they belong for the most part to two 
definite groups: Alleghenian plants here on the western edges of 
their ranges, and southern plants limited to the poor soils of the 
uplands. Some of them, such as Pinus rigida, are to be found 
within a few miles almost anywhere that one may choose to enter 
their ranges, even though the individuals may be somewhat scarce 
at the very edge. ._ In some of the others the case is not so clear from 
collections at present available, but all those here included are 
known from at least three contiguous counties in our region. 
They are moreover plants which field experience leads me to 
* Jones, H. L. Flora of Licking Co. Bull. Sci. Lab. Dennison University 7: 
85. 1892. 
