128 
hexagona Nutt. 
hirsuta (Torr.) Wiegand 
hirtula Engelim. 
humistrata Engelin. 
inundata Torr. 
Ipecacuanhae L,. 
Jonesii Millsp. 
Laredana Millsp. 
lata Engelm. 
Lathyris L. 
leiococca (Engelm.) Norton 
(EZ. Texana Boiss.) 
longicruris Scheele 
lucida W. & K. 
(Z£. Nrcaeensis Wats. not All.) 
lurida Engelm. 
Pringle (Engelm.) Norton 
maculata L. 
marginata Pursh 
Marylandica Greene 
mercurialina Michx. 
Mexicana (Engelm.) Norton 
(E. multicaulis Engelm.) 
misera Benth. 
mollis Engelim. 
montana Engelm. 
trifaris Norton 
Neo-Mexicana Greene 
nudicaulis Chapin. 
Nuttallii (Engelm.) Small 
(E. zygophylloides Boiss.) 
obtusata Pursh 
ocellata Dur. & Hilg. 
occidentalis Drew 
odontadenia Boiss. 
olivacea Small 
Palmeri Engelm. 
peplifolia(Engelin.)Norton 
paniculata Ell. 
Parishii Greene 
Parryi Engelm. 
pediculifera Engelm. 
peplidion Engelm. 
Peplus 1; 
pergainena Small 
petaloidea Engelm. 
pilulifera - L. 
discolor Engelin. 
8752 procumbens Boiss. 
8753 platyphylla L. 
8754 literata (Jacq.) Koch 
8755 platysperma Engel. 
8756 Plummerae Wats. 
8757 polycarpa Benth. 
8758 vestita Wats. 
8759 polyclada Boiss. 
8760 polygonifolia L,. 
8761 polyphyla Engelm. 
8762 Preslii Guss. 
(4. zutans of authors, not Lag.) 
prostrata Ait. 
pseudoserpyllifolia Millsp. 
pubentissima Michx. 
pycnanthema Engelm. 
radians Benth. 
Rattani Wats. 
revoluta Engelm. 
robusta (Engelin.) Small 
interioris Norton 
Roemeriana Scheele 
8763 
8764 
8765 
8766 
8767 
8768 
8769 
8770 
8771 
8772 
8773 rugulosa (EKngelm.) Greene 
8774 Rusby1 Greene 
8775 schizoloba Engelin. 
8776 mollis (Engelm.) Norton 
8777, Serpensevis. be Te, 
8778 flexicaulis (Scheele) Coult. 
8779 serpyllifolia Pers. 
8780 consanguinea Boiss. 
8781 
8782 
8783 
8784 
8785 
8786 
8787 
8788 
8789 
8790 
8791 
8792 
8793 
8794 
serrula Engelm. 
setiloba Engelm. 
strictior Holzinger 
stictispora Engelin. 
Texensis Millsp. 
subpubens Engelm. 
telephioides Chapm. 
tetrapora Engelm. 
trachysperma Engelm. 
trichotoma Kunth 
versicolor Greene 
vilifera Scheele 
Wright T. & G. 
ziniiiflora Small 
CALLITRICHACEAE 
Callitriche 
8795 Austini Engelin. 
