202 
EQUISETACEAE 
Equisetum 
HORSETAIL. 
arvense L. N. U.S. 
fluviatile L. 
(EZ. limosum J,.) N. U.S. 
hyemale L,. 
sylvaticum L, 
TAXACEAE 
Taxus 
YEw. 
minor (Michx.) Britton 
(7. Canadensis Willd.) N.U.S. 
Ginko 
MAIDEN-HAIR TREE. 
biloba L. China. 
PINACEAE 
Pinus 
WHITE PINE. 
Strobus ij, Ne he Ue S: 
Larix 
LARCH. 
laricina (Du Roi) Koch. 
(L. Americana Michx. ) 
N: Es. 8: 
Thuja 
ARBOR VITAE. 
occidentalis L. N.E. U.S. 
Juniperus 
JUNIPER, RED CEDAR. 
Virginiana L. 
TYPHACEAE 
Typha 
CAT-TAIL. 
latifolia L. 
SPARGANIACEAE 
Sparganium 
BUR-REED. 
androcladum (Engelm.) Morong 
Cincinnati Society of Natural History. 
POTAMOGETONACEAE 
Potamogeton 
POND-WEED. 
foliosus Raf. 
(P. pauciflorus Purch) 
natans J. 
pectinatus L,. 
Zannichellia 
HORNED POND-WEED. 
palustris L. 
ALISIMACEAE 
Alisma 
WATER PLANTAIN. 
Plantago-aquatica L,. 
Sagittaria 
ARROW-HEAD. 
latifolia Willd. 
(\S. variabilis Engelm.) 
HY DROCHARIDACEAE 
Philotria 
( £lodea) 
Canadensis (Michx.) Britton 
GRAMINEAE 
Andropogon 
BEARD GRASS. 
furcatus Muhl. 
scoparius Michx. 
Virginicus L. 
Sorghum 
Halepense (L.) Pers. Asia 
Chrysopogon 
avenaceus (Michx.) Benth. 
Paspalum 
laeve Michx. 
setaceum Michx. 
Panicum 
WITCH GRASS. 
capillare L. 
clandestinum L. 
depauperatum Muhl. 
dichotomum L,. 
linearifolium Scribn. 
Porterianum Nash, 
proliferum Lam, 
virgatum L, 
