DESCRIPTION OF SPECIES. 75 



Plat ANUS Heeeii Lesq. 



Oret. and Tert. Fl., p. 44, PL iii, Fig. 1 ; PI. vii, Fig. 5 ; Cret. Fl., p. 70, PI. viii, Fig. 



4 ; PI. IX, Figs. 1, 2. 



Platanus DiMiNtTTivA Lesq. 

 Cret. FL, p. 73, PL viii, Fig. 5. 



Platanus cissoides, sp. uov.' 

 PL LXI, Fig. 3. 



Leaf of medium size, subeoriaceous, ovate, five lobate, rounded to the 

 base in narrowing to the petiole, bhint-pointed at apex ; primary nerves, 

 three, the Literal joined to the midrib far above the base of the leaf, 

 obliquely diverging and passing up to the point of the lobes ; secondaries, 

 two pairs, distant from the primaries, passing up to the borders under the 

 same angle of divergence and parallel; tertiaries at right angles to the 

 midrib or oblique as branches of the secondaries ; jxi'eolation obsolete. 



The leaf is somewliat like that of Platanus, though its appearance is 

 different, especially in its ha\-ing few enthe lobes. The angle of divergence 

 of the lateral jn-imaries is 40°, and as they curve upward the lobes are in 

 the upper part of the leaves as well as the few secoudai-ies, of Avhich there 

 are only two pairs, and the leaf is more like that of a Cissus. It is, how- 

 ever, forcibly referable to Platanus, being closely allied to P. Hccrii Lesq., 

 as figured in Cret. Fl., p. 70, PI. ix. Fig. 2, from whicli it differs essentiallv 

 by tlie blunt-pointed lobes, the few secondaries, and the narrow form of the 

 leaf 



Habitat: Near Fort Harker, Kansas. No. 2736 of the U. S. National 

 Museum. 



LIQUIDAMB4R INTEGRIFOLIUM Lesq. 



Cret. FL, p. 5G, PL ii. Figs. 1, 3; PL yxiv. Fig. 2. Cret. and Tert. FL, p. 45, PL xiv, 



Fig. 3. 



'This species was describeil .ami figureil in the manuscript uudi-r the name of I'll iiUiivs cissoides, 

 but in a list of Dakota Group plants purchased for the U. S. Geological Survey, and sent bj Prof. 

 Lesquereux only a few weeks before his death, this type specimen is labeled Platanus cissoides. He has 

 pointed out in the description that it is like Platanus and closely allied to P. Heerii Lesq., and it seems 

 more ib.in probable that lie intended to change it to this genus and neglected .actually to do so. I 

 have therefore ventured to transfer it from its somewhat unmeaning position under Phyllites to the 

 more definite position under Platanus. — F. H. K. 



