30 BOTANICAL GAZETTE. 



cellulis minutissimis sul)niti(lis (vix gi'iinul()si><) rotundo-qniulratis. l)nsilai'il)us inajori- 

 bus magis minusvc pellucidis (ssepe (V) subfuscis): cittcni ignota. 



With Tortilla agraria and T. DuiinelU, on»\\e\\ banks, in the Evci'glados of Flor- 

 ida, March, 1877, -/. Doiinell Swith. 



The most striking characteristics of this moss are its sliort stems, broadly elliptico- 

 or lanceolate-oblong obtusely mucronale leaves froni a much narrowed pelbicid almost 

 vaginal base, with the margins somewhat undulate (at least tovinrds the base), some 

 nearly plane, others strongly convolute-concave above, immarginate, neither recurved 

 nor papillose-crenulate on the margin, remotely and minutely denticulate towards the 

 apex, very mmutely and closely pa])illose on the back, costa stout, smooth and percur- 

 rent, cells at the base considerably enlarged, the ordlnaiy ones mostminute and scarcely 

 granulose. — Possibly a species of 'lortul(i\ but apparently allied to Trichoslounim 

 {Didyniodon) ripariwm {P(jttia riparid, Aust Muse. Appalach.); but that has tlie leat 

 never so strongly concave, with a shorter less clasping base, a more distinctly dentate 

 or often coarsely serrate apex, the back less closely papillose, cells twice a^ large, — the 

 basilar ones less ])ellucid; color more brown, A;c. 



The following additional notes were made in comparing with other species: 



Tortula (tgraria^UKViW., is a little smaller, with the leaves more si)atulate, more 

 acute, composed of larger cells, A:c. Cells of the leaf quadrate, not granulose nor 

 opake, distinctly detined, the basilar ones considerably enlarged and truncate; perichff-- 

 tial leaves (2) scarcely convolute, oblong or lanceolate-ovate, acutish, heavily costate ; 

 outer capsule-wall composed of rather large and broad cells; peristomal teeth flattish 

 (to/w«<e), with a pellucid medial line, papillose, much twisted, dark red: stems very 

 short. A small species. 



Tortula Eavei, Aust. (Torr. Club Bull. VI., p. 48,) is nearest to 7'. agraria ; but the 

 leaf is more ovate, much more concave, more crisped when dry, UKM'e acute ; cells opake 

 and granulose, less quadrate, — the basilar ones more enlarged, less truncMte at both 

 ends; perichaHial leaves thinner, broader, strongly convolute, often obtuse, very ligiitly 

 (or even obsoletely) costate; outer wall of the capsule' composed of smaller and nar- 

 rower cells; peristomal teeth terrete, without a medial line. 



T.ccesj)itosa^H-EDVf. has the leaf granulose, more undulate, cells larger and each 

 bearing 2 or more papilhe on its back, the papillte projecting beyond the otherwise 

 entire margin, thereby giving it a crenulated appearance. 



Calymperes lUchardi, C. M. lias somewhat narrower leaves, which are broadly 

 margined towards the base, the margins above involute and entire; basilar cells much 

 larger and more hyaline and extending much farther up the leaf; ordinary leaf-cells a 

 trifle larger, more acutely angular, closer, :ind when v-iewed under the microscope with 

 transmitted light they exhibit a single papilla on the back of each as a minute shining 

 speck . 



Tortula recurrifolia, ScHiiMP. — I found a tew stems of this species, mixed with T. 

 intermedia (Bkid.) in crevices of rocks near the Weehawken Oil T>ocks, N. J., and also 

 at Suffern, N. Y., in 1866. Messrs. Wolle and Rau and myself found it in Walkin's 

 Glen, and I also found it at Niagara Falls, in 1874. Some one, Mr. Warnc, I think, has 

 sent it to me from Colorado, and both Mr. Macoun and Jlrs. Roy have sent it from Can- 

 ada. The Canada specimens are very small and slender, with the leaves short and 

 mostly not recurved. All the specimens are sterile. 



Tortula Closteri, Aust., (in Bot. Gazette:, I., p. 29,) is characterized by its sublin- 

 ear, or oblong-lanceolate subcarinate remarkablj' granulose leaves, veiy slightly recurved 

 on one of the margins below the middle, with a minute hyaline apiculus; apex of the 

 leaf often strongly recurved.— Closter and Camden, New Jersey. Also, Gainesville, 

 Florida, BaDenel. Very rare; sterile. 



