54 ORTHOTRICHACEAE ■ 



5 — Capsule smooth, or very slightly plicate around the mouth when 



dry and empty striatum 



Capsule plicate the whole length when dry sordidum 



6 — Capsules strongly contracted under the mouth when dry, and so 

 strongly plicate that the red-brown folds are almost in contact on 



the outside when dry and empty strangulatum 



Capsules very slightly or not at all contracted, much less strongly 



plicate, pale, whitish or yellowish 7 



7 — Leaves entire, biunt at extreme apex Ohioense 



Leaves (some at least) dentate with projecting cells, often apiculate. . 8 

 8 — Leaves mostly acute at apex, not rounded; usually some with an 

 apiculus of a single projecting cell; capsules plainly 8-plicate when 



dry Schimperi 



Leaves obtuse, rounded and some sharply denticulate at apex with 

 several projecting cells; capsule smooth or faintly 8-plicate when 

 dry pusillum 



O. anomalum Hedw. Rocks, Palisades, Flora N. J.; Bran- 

 ford, Bry. Ct. May-June. 



O. Lescurii Austin. "On dry shaded rocks, northern N. J. 

 and southern N. Y.," Muse. App. 163; Pascack and Palisades, 

 N. J., Austin, Bx! 



O. Ohioense S. & L. College Point, Jamaica, and Sag Har- 

 bor, L. Id.; New Dorp, S. Id.; Bedford, N. Y.; "On trees, N. J. 

 and N. Y.," Muse. App. 170 (As 0. Citrinum); Trumbull, Ct. 

 April. 



O. Ported Aust. "On dry limestone rocks, Sussex Co., N. J. 

 and Orange Co., N. Y.," Muse. App. 162 (as 0. Peckii); on 

 rocks near Jerome Ave., Mott Haven, Sanial, Bx! 



O. pusillum Mitt. "On shade trees, central N. J.," Muse. 

 App. 171; Little Falls, N. J., Sanial, Bx!; Rockland Lake, N. 

 Y., Jelliffe, Bx!; New Dorp, S. Id., E. G. B., Bx! May. 



O. sordidum S. & L. "On trees, N. Y. and N. J., very com- 

 mon," Muse. App. 168; On red cedars, New Dorp and on 

 willows back of mausoleum, Todt Hill, S. Id., E. G. B., Bx!; 

 Cold Spring, L. Id.!! Spring-summer. 



O. Schimperi Hamm. "On shade trees in towns and villages 

 of central N. J.," Muse. App. 165: New Dorp, S. Id., Van 

 Cortland Park, Bronx Park, E. G. B., Bx! Spring. 



