PLANTS OF SOUTHERN NEW JERSEY. 653 



Britton's Catalog"ue refer to the same colony of plants. Named 

 for Charles Pickering (1805-1878), a prominent Philadelphia 

 naturalist, member of the Wilkes Exploring Expedition, and 

 prominent in local botanical work.* 

 Fl. — Mid-July to late August. 



Pine Barrens. — Pleasant Mills, Batsto, between Atsion and Quaker Bridge, 

 Little Egg Harbor R. (C), three miles above Atsion (Williamson), Chats- 

 worth (H). 



IPOMCEA L.f 



Ipomoea pandurata (L.). Wild Potato. 



Convolvulus pandiiratiis Linnaeus, Sp. PI. 153. 1753 [Virginia]. — Barton Fl. 



Phila. L 107. 1818. 

 Ipomoea pandurata Knieskern 24. — Willis 48. — Britton 179. 



Open sandy ground or thickets in nearly all parts of the State, 

 except the Pine Barrens, but nowhere very common. 



Fl. — Early July into October. 



Middle District. — New Egypt, Florence Heights, Kaighns Pt., Lawnside 

 (S). 

 Pine Barrens. — Newtonville. 

 Cape May. — i mile east Dias Creek (S), Cape May. 



CONVOLVULUS L. 



Convolvulus spithamaeus L. Upright Morning Glory. 



Convolvulus spithamccus Linnaeus, Sp. PI. 150. 1753 [Virginia]. — Britton 



180. — Keller and Brown 264. 

 Calystegia spithamcca Willis 48. 

 Convolvulus stans Barton, Fl. Phila. I. 158. 1818. 



Sandy ground in the Northern and Middle districts ; local, and 

 at some stations certainly a weed. 

 Fl. — Late May to late June. 



Middle District. — Long Branch, Camden (S), Collingswood (S), Rid- 

 dleton. 



Convolvulus sepium L. Hedge Morning Glory or Bindweed. 



Convolvulus sepium Linnaeus, Sp. PI. 153. 1753 [Europe]. — Britton 179. 

 Calystegia sepium Knieskern 24. 



Middle District. — Farmingdale, Delair, Washington Park, Mickleton, Salem 

 (S), Beaver Dam. 



*Cf. Proc. Am. Acad. Arts and Sci. XHL, 414. 



t Ipomcea lacunosa is entirely an introduced species within our limits. 



