268 REPORT OF NEW JERSEY STATE MUSEUM. 



Scirpus planifolius Muhl. Few-flowered Club-rush. 

 PL XX., Pig. 2. 

 Scirpus planifolius M'uhlenberg, Gram. 32. 1817 [Pennsylvania and Delaware]. 

 — Britton 264. — Keller and Brown 64. 



In woods ; frequent in the Northern and occasional southward 

 in the Middle district. 



Pr. — Late May to mid- June. 

 Middle District.—MulVica Hill (C), Mickleton, Swedesbpro. 



Scirpus subterminalls Torr. Water Club-rush. 

 PI. XX., Fig. 6. 

 Scirpus subterminalis Torrey, Fl. U. S. I. 47. 1824 [Deerfield, Mass.]. — 

 Knieskern 34. — Torrey, Ann. Lye. N. Y. III. 317.— Willis 68. — Britton 

 264. — Keller and Brown 64. 



Common in Pine Barren streams, occurring locally also in the 

 lower part of the Middle and Cape May districts. 



A characteristic species in the dark brown waters of the Pine 

 Barrens, where it grows in great masses, its long leaves and 

 stems swaying in the current and often associated with Bleocharis 

 robbinsii. In ponds where the water has been drained off, it 

 often grows upright with much shorter and stiffer stems, pre- 

 senting quite a different appearance. 



Pr. — Early July to late August ; fruit rather uncommon. 



Middle District. — Repaupo (KB), Swedesboro, Fairton. 



Pine Barrens. — Toms River, Ferrago (P), Bamber, Forked River, Ware- 

 town, Pasadena, West Creek (S), Tuckerton, Speedwell, Chats worth (SX 

 Browns Mills (KB), Cedar Brook (KB), Berlin, Jackson, Parkdale, Ham- 

 monton (NB), Quaker Bridge, west of Atlantic City, Pancoast. 



Cape May. — Dennisville (S), Nummeytown. 



Scirpus debilis Fursh. Weak-stalked Club-rush. 

 PI. XX., Fig. 4. 

 Scirpus debilis Pursh, Fl. Am. Sept. 55. 1814 [Pennsylvania], — Barton, Fl. 

 Phila. I. 36. 1818.— Willis 68. 



Occasional in damp spots in the Northern and Middle districts. 

 Rare within our limits. 



Pi. — Late August into October. 

 Middle District. — Delanco, Birmingham, Mickleton (H).* 



*The references to S. debilis by Harshberger, Proc. Ac. Nat. Sci., 1900, 

 623-671, must surely apply to 5". americanus, as I have never found 5". debilis 

 growing as there described, nor do I know it from the coast. 



