Sheppard : Yorkshire Naturalists at Brough. 223 



Mr. Robinson, who is just completing- a ' Flora of the East 

 Riding,' which will be published by the Hull Society, states that 

 as the greater part of the ground in the vicinity of Brough is of 

 a dry, porous character, and as the season has been dry and 

 cold, it was somewhat disappointing- to be unable to obtain 

 more of the typical xerophiles (dry-preferring- plants). All of 

 importance that were obtained appear in the list below, tog-ether 

 with certain hygrophiles (damp-loving-) which were obtained in 

 Wold-dale Bottom, and near the ' Cockle Pits ' spring between 

 Ellerker and Brough : — 



Viola flavicornis. Welton Dale. 



Polyg-ala depressa. Welton Dale. 



Cerastium semidecandrum. 



' Cockle Pits. ' 



Cerastium arvense. 'Cockle Pits.' 



Saponariaofficinalis. ' Cockle Pits.' 



Astragalus glycyphyllos. 



Hull Road. 



Alchemilla vulgaris var. filicaulis. 



Saxifraga granulata. 



Valeriana dioica. Wold-dale. 



Menyanthes trifoliata. 



Atropa Belladonna. 



Brantingham Dale. 



Pedicularis sylvatica. 

 The last four of the above-named Carices were brought to the 

 meeting, having been gathered by an advance party who had 

 been botanising nearer the Humber during the week-end. 



The recorders for Diatomaceae (Messrs. M. H. Stiles, of 

 Doncaster, and R. H. Philip, of Hull) report having observed 

 over 70 species in gatherings obtained on this excursion. 



Mr. Stiles observes that Pleurosigma attenuatum, found by 

 him in a small stream at Ellerker, was shorter and broader than 

 the type form, and approximated to P. hippocampus. Campylo- 

 discus hibeniicus, found in a drain parallel to the Humber at 

 Brough, differed as to markings from any valve he had yet seen. 

 They consisted of rows of dots instead of costae, and there was 

 an oblong space in the centre free from markings. 



Mr. Philip remarks that in a gathering from a brook at 

 Brantingham, Gomphonema parvulum is abundant, and Synedra 

 ulna var. oxyrhymcus unusually free from admixture of other 

 varieties of S. ulna. In a little brook at Brough, Navicula 

 gastrum was unusually fine and abundant. In Welton Springs, 

 Nitzschia Palea constituted fully 90 per cent, of the total, the 

 remaining 10 per cent, comprising over 20 species. 



1901 July 2. 



Daphne Laureola. Branting-ham. 



Pinguicula vulgaris- 



Listera ovata. Wold Woods. 



Orchis Morio. 



Orchis ustulata. 



Orchis latifolia (not ' incarnata '). 



Eriophorum polystachyon. 



Carex dioica (second occurrence 



in the East Riding). 

 Carex divisa. 

 Carex binervis. 

 Carex stricta. 

 Carex rostrata. 



Brachypodium pinnatum (grass). 

 Botrychium Lunaria. 



