392 
mata, absence or narrowness of leaves, or an unusual amount of 
wooliness or hairiness. 
There are quite a number of common oaks in some portions 
of this eastern part, Spanish oak, Post oak, but most abundant in 
the upland reduced forests is Quercus nigra L., the dwarfed, 
gnarled “ black jack.” There are some hickories, black walnuts, 
cottonwoods, and elms along the river and creeks, the elms bearing 
abundantly large bunches of mistletoe. 
A few observations as to the occurrence and habitat of some 
plants may be interesting. In the rich sandy land along the river 
bottoms the commonest shrubs are Cephalanthus occidentalis L., 
Stillingia sylvatica L., Rhus copallina L. On Stillingia was found 
an Aecidium which has not been yet reported on this host, as far 
as can be determined. Somewhat abundant in similar places were 
Argemone platyceras Link and Otto, Callirhoe involucrata (Nutt.) A. 
Gray, Parosela enneandra (Nutt.) Britton, /roelichia Floridana 
(Nutt.) Moq., /udigofera leptosepala Nutt., Aphanostephus ramosisst- 
mus DC. In wet, salty sand near the river were Pluchea campho- 
vata (L.) DC., Sesuvtum Portulacastrum L., and in the dry sand, 
Cycloloma atriplicifolium (Spreng.) Coulter, Baccharis glutinosa 
Pers., and Parosela /anata (Spreng.) Britton. The latter is reported 
in Gray’s Man. to have “3-4 pairs” of leaflets, while 6-7 pairs were 
usually present on the specimens collected. On the high bluffs of 
the river Yucca glauca Nutt. was not infrequent. 
In the woods which extend back from the river bottoms tw° 
or three miles are Cassia Chamaecrista \.., C. nictitans L., or “ sen- 
sitive plant,” Desmanthus Jamesii T. & G., Clitoria Mariana L, 
Gaura villosa Torr., Onagra biennis (L.), Scop., grandiflora Lindl., 
a beautiful passion-flower, Passiflora incarnata L., Lacinaria squat 
rosa (L.) Hill, Chrysopsis villosa Nutt., in many of its variable 
forms, Asclepias verticillata L., and Acerates angustifolia (Nutt.) 
_ Dec.; also low shrubs of Busmelia lanuginosa (Mx.) Pers. and sev" 
eral species of plum. A perhaps noteworthy point was the occur- 
rence of Ludwigia alternifolia L. in sandy but perfectly a t4- 
vines. Gray’s Manual reports the habitat of this as “ swamps.” 
The whole prairie region is characterized by an abundance of 
plants belonging to the orders Leguminosae and Compositae. Par- 
ticularly abundant on the prairies are Kuhnistera multiflora (N utt.) 
