94 Ingham : Harpidioid Hypna of Yorkshire and Durham. 



2. Forma falcata Ren. Askern Spa (63), in field on side of 

 ditch; on floor of magnesian limestone quarry, Knottingley (63); 

 on Coatham Marshes (62), the forma diversifolia Ren. 



3. Forma turjicold Ren. An aberrant form of this among - 

 grass on the floor of magnesian limestone quarry, Knottingley 



(63)- 



4. Forma gracilescens Ren. = var. gracilescens Schimp. By 

 side of ditch on Clifton Ings, York (62). 



5. Forma diversifolia Ren. Among- grass by pool, Selby (61); 

 on Coatham Marshes (62), the forma anomala diversifolia. 



6. Forma tenuis (var. .tenue Schimp.). On side of ditch by 

 wood, Barlby (61). 



II. — Group Kneiffii Boulay. 



1. Var. Kneiffii Schimp. On side of ditch, Naburn (61), the 

 true Kneiffii, which appears to be a rare plant. 



2. Var. intermedium Bry.Eur. Submerged in pool, Strensall 

 (62) ; in marsh, among bulrushes, Naburn (61), c.fr. Forma 

 laxifolia (var. laxifolium Sanio), on Coatham Marshes (62) ; 

 Naburn (61). 



III. — Group pseudofluitans Sanio. 



1. Var. paternum Sanio. Submerged in pool, Strensall (62). 



2. Var. flexile Ren. In brickpond, Church Fenton (64), 

 approaching - var. paternum \ Submerg-ed in pool, Strensall, 'ad 

 v. flexile accedens.' 



The two forms falcata and diversifolia, the latter characterised 

 by longry-subulate stem-leaves and much shorter branch-leaves, 

 are to be raised by Renauld to the rank of varieties when they 

 have been proved to be widely distributed. Mr. Wheldon has, 

 I believe, found forma, falcata in Lancashire. 



liypnum fluitans L. 



I. — Group amphibium Sanio. 



1. Var. Jeanbernati Ren. (var. paludosum Sanio). Floating in 

 large masses, in fruit, Skipwith Common (61) ; in pool on moor 

 above Farngill, Reeth (65). 



- 2. Var. elatum Ren.&Arnell. Covering bed of lake, Skipwith 

 Common (61), the forma data, 'ad var. elatum transiens.' 



Naturalist, 



