—66— 



between the species prove to be equally uncertain, it becomes necessary to reduce 

 F. Kappii to synonymy under F. inflata as indicated above. 



In 19 1 5 the writer reported F. mexicana from Arizona and New Mexico, 

 the specimens from the latter state having been previously referred to F. inflata. 1 

 In recognizing the validity of F. mexicana, its very close relationship to F. Rappii 

 was emphasized, and it was shown that the two species agreed closely in the 

 character and distribution of the local wall-thickenings in the lobes and lobules. 

 The distinctions brought out between them were relatively slight, and the species 

 were kept apart largely on account of their wide geographical separation. With 

 the inclusion of F. Rappii among the synonyms of the widely distributed F. 

 inflata, the supposed distinctions between the Florida species and F. mexicana 

 and between the latter species and F. inflata lose their significance and come 

 within the limits of variability to be expected. The reduction of F. mexicana 

 to synonymy follows as a matter of course. 



Another closely allied autoicous species is F. saxicola Aust., ? under which 

 Midler has recently included the European F. cleistostoma Schiffn. &. Wollny as 

 a synonym. 3 This species, in North America, is known only from Connecticut, 

 New Jersey and Texas, while in Europe it seems to be confined to the vicinity of 

 Meran in the Tyrol. The beak of the perianth in F. saxicola is completely blocked 

 by papillae growing out from the inner surface, while the teak in F. inflata was 

 supposed to be free and open. Miss Haynes, however, has called the writer's 

 attention to the fact than even in F. itiflata, especially in material from southern 

 localities, the beak may show a few internal papillae, although these are rarely 

 visible until the beak has been split lengthwise and spread out flat. The dis- 

 tinction between the beaks thus proves to be quantitative rather than qualitative 

 in character. Since the other distinctions between the species are not very striking 

 the reduction ot F. saxicola to synonymy under F. inflata might likewise seem to be 

 indicated, but the writer hesitates to make this reduction positively until more and 

 better material of F. saxicola is available for study. 



The type specimens of F. inflata were collected by Beyrich "in America 

 septentrionali ad Whastite Red River" and are presumably in the Gottsche 

 Herbarium at Berlin. Several stations for the species have been recorded by 

 the writer from time to time, but in order to give a comprehensive idea of its 

 known range in North America a complete list of the specimens examined is given 

 below. 



Connecticut: Brookfield, Evans; Salisbury, Lorenz. District of Colum- 

 bia: Georgetown, Coville (distributed as F. virginica in Underwood & Cook's 

 Hep. Amer. 68). North Carolina: Winston-Salem, Chapman 613. Georgia: 

 Flint River Swamp, Sumter County, Harper 2042 f. Florida: Sanford and 

 vicinity, Rapp (including the type of F. Rappii). Alabama: Mobile, Mohr. 

 Mississippi: without definite locality, Hall. Ohio: Fairfield County, Miller. 



1 Brvologist 13: 36. 19 10. 



2 See Rhodora 12: 202. 1910. 



3 Rabenhorst's Kryptogamen Flora 6 2 J 631. 



