﻿the Lower Susquehanna 491 



McCall 



85. Hibiscus militaris Cav. Safe Harbor; Tucquan. On the 

 islands, near the water. 



86. Ascyrum hyp eric oides L. Tucquan Island ; 



87. Hypericum Ascyron L. Harrisburg, on the islands, SmalL 



88. Hypericum prolificum L. Frequent along the river shores. 



89. Hypericum cllipticum Hook. Safe Harbor. 



90. Viola rotundifolia Michx. York County, opposite Safe 

 Harbor. A mountain species. 



91. Viola villosa Walt. York Furnace, /. Crawford. 



92. Passiflora lutea L. Safe Harbor ; Tucquan Island. Also 

 west of the Alleghenies. 



93. Opuntia Opuntia (L.) Coulter. Peach Bottom. It occu- 

 pies a space of several yards square, near the top of a rocky hill, 

 at the head of a large island and is found also in a similar habitat 

 at the Delaware Water Gap. 



94. Rotala ramosior (L.) Koehne. Chickies and the York- 

 County shore opposite, and further down. 



95. Kneiffia linearis (Michx.) Small. Mouth of the Tucquan. 



96. Proserpinaca palustris L. Harrisburg. 



97. Myriophyllum spicatum L. In the river at Harrisburg. 



98. Oxytropis rigida (L.) Britt. Harrisburg, on the islands. 



99. Cicuta btdbifera L. Collins' Ferry. 



100. Hydrocotyle ramuuuloides L. f. York County, above 

 Wrightsville ; Harrisburg ; Collins' Ferry. 



10 1. Eris:enia bulbosa Nutt. York County, above Wrights- 



ville. A western species. 



102. Azalea arborescens Pursh. Marysville, Perry County, 

 Small \ Tucquan Island, where I found in 1864, under a large 

 overhanging rock, a small bush of it bearing a profusion of frag- 

 rant, snow-white blossoms. 



103. Rhododendron maximum L. McCall's Ferry. Abun- 

 dant in all the large ravines along the river. 



104. Picris Mariana Benth. & Hook. Below Peach Bottom. 



105. Lysimachia vulgaris L. York Furnace, Brinton. 



106. Dodeeatheon Mcadia L. Duncannon, Garber; Bridge- 

 port, opposite Harrisburg ; Safe Harbor. Also on the Conestoga, 

 near Lancaster. 



