28 Rhodora [FEBRUARY 
valley, Foxcroft, July 17, 1895, M. L. Fernald. New HAMPSHIRE: 
Winchester, Aug. 1, 1898, B. L. Robinson. VERMONT: Charlotte, 
July 6 and October 11, 1879, С. G. Pringle; Manchester, Aug. 1, 
1898, M. A. Day; Pownal, banks of Hoosic River, June 27, 1904, di 
R. Churchill, A. Rehder. The specimens from Winchester are not 
typical but suggest a possible hybrid between Psedera vitacea and P. 
quinquefolia. Distributed from eastern Canada and New England 
through northern New York and the Great Lake region to Manitoba, 
Montana, Wyoming, Utah, Arizona, New Mexico, Texas, Kansas 
and Iowa. 
'The following varieties and forms can be distinguished: 
PsEDERA VITACEA forma macrophylla, n. comb.— Vitis quinque- 
jolia var. macrophylla Lauche, Deutsch. Dendr. 470. 1880.— Ampe- 
lopsis quinquejolia b. latifolia Dippel. Handb. Laubholzk. 2:474. 
1892. This is only a garden form with large leaves, the leaflets being 
sometimes up to 10 cm. broad. 
PsEDERA VITACEA var. dubia, n. comb.— Parthenocissus hirsuta 
Graebner, Gartenfl. 49: 251. 1900.— Parthenocissus vitacea var. 
dubia Rehder, Mitt. Deutsch. Dendr. Ges. 14:135. 1905. This is a 
somewhat doubtful form; it differs from the type in the usually rather 
sparse hairiness of the young branchlets and the under side of the 
leaves. I have never seen a specimen which agrees exactly with 
Graebner's description; the specimen upon which he based his descrip- 
tion and supposed to be from the Eastern States could not be found 
in the Herbarium of the Berlin Botanical Museum, as I was looking 
there for it. Cultivated forms named by Dr. Graebner P. hirsuta 
show but a slight pubescence and suggest a hybrid between Psedera 
vitacea and P. quinquefolia var. hirsuta. 
PSEDERA VITACEA var. laciniata, n. comb.— Parthenocissus quinque- 
Jolia 8 laciniata Planchon in De Candolle, Monogr. Phan. 5:449. 
1887.— Psedera laciniata Greene, Leaf. Bot. Observ. 1:220. 1906. 
This is the Rocky Mountain form and occurs in Wyoming, Colorado, 
Utah, Arizona and New Mexico. It differs from the type in its smaller, 
narrower and incisely serrate leaflets and their usually pale yellowish 
green color. 
Besides these two species only one more occurs in North America; 
this is Psedera heptaphylla, n. comb.— Ampelopsis heptaphylla Buck- 
ley, Proc. Philad. Acad. 1861:450.— Vitis hederacea var. texana 
Buckley ex Durand, Bull. Soc. Acclim. Paris 9:486. 1862.-- Psedera 
