5(5 LACKA WANNA AND WYOMING FLORA. 



81. JUGLANDACE^. 



JUGLANS, L. 

 WALNUT. 



627. J. cinerea, L. WHITE WALNUT. BUTTERNUT. Duryea; lower 

 Lackawanna Valley ; along the Susquehanna. Dudley. 



628. J. nigra, L. BLACK WALNUT. Occasional. Davis. Scarce in 

 Lackawanna Valley from Scranton to Pittston ; along the Susque- 

 hanna; abundant by river below Wilkes Barre; also above the Wyo- 

 ming Valley to Ulster. Dudley. 



CARYA, NUTT. 

 HICKORY. 



629. C. alba, NUTT. SIIAGBARK HICKORY. Woods, frequent. It 

 has a destructive enemy in the "twig girdler" (Oncideres cingulatuA 

 SAY). I counted six girdled twigs on a single branch, spring of '92. 



630. C. tomentosa, NUTT. WHITE-HEART HICKORY. MOCKER- 

 NUT. Rather frequent throughout. 



631. C. microcarpa, NUTT. Lower Lackawanna Valley (?) ; near 

 Red Shale Ledges, Mocanaqua. Dudley. 



632. C. porcina, NUTT. PIGNUT HICKORY. Campbell's Ledge woods, 

 etc. Dudley. 



633. C. amara, NUTT. BITTERNUT HICKORY. Near Lack. R. above 

 Pittston, also near its mouth ; Duryea ; by ravine near Shickshinny ; 

 near Kingston. Dudley. 



82. MYRICACE^:. 



MYRICA, L. 



634. M. Gale, L. SWEET GALE. Pond south of Waymart ; L. Henry 

 Dudley. 



A form with leaves bright green and strongly resinous- dotted hot! 

 sides, differing especially in the former character from all specimens 

 seen from this country or Europe, occurs at Tobyhanna. Dudley. 



635. M. asplenifolia, Endl. (Comptonia asplenifolia^ Ait.) SWEEI 

 FERN. Common in all dry woods. 



