FONTINALIS. 355 



width. The limits, however, of the variety are somewhat vague, as they are also in 

 the case of the var. gracilis. The latter is the usual form in swiftly flowing mountain 

 streams, occasionally growing with and passing into the typical form ; it is frequently 

 of a bright golden, glossy brown colour, and is very different in habit from the type, 

 somewhat resembling F. squamosa at first view. Another alpine form has the leaves 

 obtuse or obtusely pointed, and very divergent even when dry. 



* Fontinalis dolosa Cardot in litt. (Tab. XLVIII. C). 



Stem-leaves conduplicate, when old frequently splitting 

 longitudinally ; branch-leaves much smaller and narrower, 

 almost plane, as are also the upper stem-leaves ; all soft. 

 Perichsetial leaves finally truncate-laciniate. Capsule usually 

 half-exserted, when dry somewhat constricted below the mouth, 

 smaller than in F. antipyretica. Peristome strongly papillose, 

 outer teeth narrowly linear-acuminate, often united in pairs at 

 apex, with 25-30 lamellae ; inner peristome perfect. 



Hab. On logs in ponds, Limbury, Bedfordshire (Saunders, 1882). 



The above is a translation of M. Cardot's description, to which he adds : " Allied 

 to F. Kindbergii Ren. and Card., but distinguished by its soft leaves, those of the 

 branches almost plane, not channelled, only slightly folded longitudinally ; and by its 

 half-exserted capsules, lightly constricted below the mouth when dry. By its soft 

 leaves, those of the branches almost plane, and its half-exserted capsule, this species 

 recalls at first sight F. hypnoides ; but the stem leaves distinctly conduplicate show it 

 to belong undoubtedly to the Tropidophylla^, and it is nearly allied to F. Kindbergii 

 R. & C." 



In some of the specimens the capsules are strongly constricted below the mouth, 

 and this and the half-exserted position give them a markedly different appearance 

 from those of F. antipyretica ; in addition to which the rather distant, flaccid, 

 narrow branch-leaves, which are almost flat and not at all keeled, are very distinct, 

 and it is indeed by the lower stem-leaves alone that it is seen to be really allied to 

 F. antipyretica, to which I attach it as a sub-species, in which position F. Kindbergii 

 is placed by Cardot (Rev. Bry., 1891, p. 82). 



2. Fontinalis squamosa L. (Tab. XLVIII. E.). 



Resembling F. antipyretica var. gracilis, but shorter, usually 

 more slender, with smaller, narrower , acute, ovate-lanceolate or 

 lanceolate leaves, if-2 lines long, concave, rounded and not 

 keeled at back; cells narrow, the walls firm and somewhat 

 incrassate. Capsules closely resembling those of that species, 

 but rather smaller, i£ lines long, very slightly exserted ; peristome 

 teeth with numerous (25-35) lamellae. Spores 20-30 /*. 



Var. (3. Curnowii Card. Rather soft, yellowish, primary 

 divisions of the stem numerous, elongated, with few branches ; 

 leaves somewhat distant, erecto-patent. Perich&tial leaves 

 abruptly apiculate. Capsule immersed. 



Hab. Mountain streams and cascades ; not uncommon. The var. fi, Penzance 

 (Curnow); Taxal, Derbyshire (Rogers, 1878). Fr. rare, summer. 



