BOTANY 



Kuetz. ; and Nitella Jiexilis, Ag., first found by Jowett at Bulwell, and 

 recorded by Messrs. Groves as collected by Mr. H. Searle near Work- 

 sop, in 1885. Tolypella glomera ta should certainly be found with us, as it 

 grows in a pond just over the county border in Derbyshire. 7*. intricata 

 also has occurred in Yorkshire, close to the Nottinghamshire boundary. 



Of the Algae, other than Characeae, practically nothing is known ; 

 they have not been seriously studied by a single Nottinghamshire 

 botanist, and only a few species which, by their abundance, force them- 

 selves upon the notice of the collector of other aquatic plants, or are 

 looked for on account of their beauty as microscopic objects, have had 

 any chance of being recorded. Vofoox globator occurs in abundance in 

 ponds in certain localities ; desmids and diatoms of many and varied 

 kinds may be found in profusion in suitable places, and species of 

 Zygnema, Spirogyra, Oedogonium, etc., are common. Cladophora glomerata 

 is abundant in canals ; Prasiola crispa and Enteromorpha intestinalis are not 

 uncommon. Chroolepus aureus is sometimes quite a feature of damp rock 

 faces in magnesian limestone quarries. Nostoc occurs in extraordinary 

 abundance in the stream in Shireoaks Park, and on damp ground in 

 various places. Batrachospermum moniliforme has occurred in the lake at 

 Newstead Abbey, and the curious Hildenbrandtia rivu/aris, which covers 

 stones in streams with blood-red incrustations, is found in the River 

 Poulter at Elksley near Retford, and probably elsewhere in North 

 Nottinghamshire. 



LICHENS 



A few species of Lichens were recorded by Deering in 1738, and a 

 century later Howitt, in his Nottinghamshire F/ora, gave localities for 

 many additional species, largely on the authority of Messrs. Deakin and 

 Bohler. No more recent worker seems to have touched these plants, 

 and the list which follows is taken almost entirely from Howitt's work. 

 The names and arrangement adopted are those of Crombie's British 

 Lichens, as far as published, i.e., up to and including Urceolaria scruposa ; 

 the remaining species are given under the names they bear in Leighton's 

 Lichen Flora. 



Collema cheileum, Ach. 



nigrescens, Ach. 

 Leptogium lacerum, Gray 



palmatum, Mont. 

 Calicium hyperellum, Ach. 



quercinum, Pers. 

 Sphaerophorus coralloides, Pers. 

 Baeomyces rufus, DC. 

 Cladonia pyxidata, Fr. 



fimbriata, Fr. 



gracilis, Hoffm. 



furcata, Hoffm. 



squamosa, Hoffra. 



- delicata, Florke 



coccifera, Schaer. 



deformis, Hoffm. 



- macilenta, Hoffm. 



Cladina rangiferina, Nyl. 



uncialis, Nyl. 

 Ramalina farinacea, Ach. 



fraxinea, Ach. 



fastigiata, Ach. 

 Usnea hirta, Hoffm. 

 Cetraria aculeata, Fr. 

 Platysma glaucum, Nyl. 

 Evernia prunastri, Ach. 



furfuracea, Fr. 

 Parmelia saxatilis, Ach. 



omphalodes, Ach. 



caperata, Ach. 



olivacea, L. (?) 



physodes, Ach. 

 Lobaria pulmonaria, Hoffm. 

 Peltigera canina, Hoffm. 



6 7 



Peltigera rufescens, Hoffm. 



spuria, Leight. 



- polydactyla, Hoffm. 



- horizontalis, Hoffm. 

 Physcia parietina, De Not. 



ciliaris, DC. 



pulverulenta, Nyl. 



stellaris, Nyl. 



subsp. tenella, Nyl. 



ulothrix, Nyl., var. virella. 



Cromb. 

 Lecanora saxicola, Ach. 



laciniosa, Nyl. 



vitellina, Ach. 



citrina, Ach. 



aurantiaca, Nyl. 



cerin.i, Ach. 



