60 
FOURTEENTH REPORT. 
List of the 
Species 
of the Salix-Cornus Thicket Association : 
Salix hieida. 
Salix discolor. 
Salix rostra t a. 
S alix (i la a cophylla. 
Solid: serissi ma. 
Sal ix peel i cell a ris. 
Iiosa Carolina. 
I ’ illinium cassinoides. 
DOMINANT SPECIES. 
Corn us stolon if era. 
S pit ■aeo so l i e i fo l ia . 
Sambucus racem osa. 
Sa m b uc vs ecu i ad en sis. 
Prim us virej i a ia a a . 
Lonicera dioica. 
Viburnum opulus. 
SECONDARY SPECIES. 
Osrnunda regalis. 
Carex retrorsa. 
O n odea sen s i h i l is. 
Bromus ciliatus. 
(i i peer ia n err a Ui. 
Equ isctum laeingatum. 
S o l id ago ora m in if oil a. 
Smilaeina stellata. 
Ran u i. cuius pcnnsylvanicus. 
Ca m panala a pa r in o ides. 
Mentha atvensis canadensis. 
Trifolium repens. 
A stcr novae-angliae. 
ThaUctru m dasycarpum. 
Aster spp. 
Po ten t ilia in o nspcliensis. 
Sol idago canadensis. 
Mi mill us riu gens. 
Solidago spp. 
P seder a quinquefolia. 
('area festucacea. 
Agrop grain sp. 
Rh ux toxicodendron. 
Muhlenberg ia sp. 
Polygonum cilinode. 
Clematis virginiana. 
Ribes cynosbati. 
C o man cl ra umbellate/. 
Ribes prostratum. 
Cna ph a Hum a lig inosum. 
Polygon mu avioulare. 
H up cri cum can a dense. 
RELIC 
SPECIES. 
E n put or him perfoliatnm . 
Oxypolis rigid ior. 
Eupatoriiim purpurea m. 
T. o Re l i a card in a Us. 
A sclepias incarnate/. 
A (in m berg i a th yr sift ora . 
Scutellaria galcriculata. 
Ph rag m ites communis. 
Myrica gale. 
Typha la ti folia. 
Epilobium angustifolium. 
Scirpus cyperinus pelius. 
L ys ima cli ia t erres tris. 
INVADING SPECIES. 
Populus treniuloidcs. 
Alnus incana. 
Ulnius fulva. 
Betula alba papyrifera. 
The Sal ix-Gephal ant Jins Association. 
Along parts of the shores of Douglas and Burt Lakes and around 
some of the bogs in the region was a poor representation of this asso 
ciation which is so abundant along the Illinois River in central Illinois. 
The association was characterized by dwarf plants of Salix longifolia 
growing in water-soakt ground. This willow commences its develop- 
