338 THE JOURNAL OF BOTANY 



pulmonaria, Bicasolia Icetevirens, Coccocarpia plumbea, Leproloma 

 lanuginosum, Thelotrema lepadinum, Strigula Babingtonii. 



In addition to these, as to which there is little or no doubt 

 about their being extinct, there are a considerable number of others 

 that have not been met with of recent years, viz. : — 



ColUma flaccid urn, C. glaucescens, C. crispum, C. granuliferum, 

 C. cristatum, G. fasciculare, Leptogium pulvinatum, L. trevielloides, 

 Calicium chrysocephalum, G. melanophceum var. ferrugineum, C. 

 trachelinum, Trachylia stigonella, Bceomyces roseus, B. ceruginosus. 

 Of the genus Cladonia several species have not occurred in 

 fruit, but as so much depends in this genus on this character, and 

 many specimens found are unfertile, it may well be that they still 

 linger on. Of the genus Usnea only U. hirta is now to be found. 

 In the genus Pannelia there are several recorded species, e. g., 

 P. Icevigata, P. acetabulum, and Parmeliopsis ambigua, which have 

 not been met with recently. 



The same remark applies to Physcia ulothrix, Gyrophora poly- 

 phylla, G. floccidosa, and many species of Lecanora, e. g., L. 

 laciniosa, L. candelaria, L. circinata, L. parisiensis, L. albella, 

 L. glaucoma, L. sulphur ea, L. conizea, L. expallens, L. symmicta, 

 L. polytropa, L. syringea, L. effusa, L. squamulosa. 



Of the genus Pertusaria, P. multipuncta, P. velata, P. Mela- 

 leuca, P. Widfenii, also Urceolaria scrtqwsa; and of the genus 

 Lecidea, L. flexuosa, L. conglomerata, L. tenebrosa, L. fusco-atra, 

 L. confluens, L. verruculosa, L. Lightfootii, L. cyrtella, L. lutea, 

 L. cliluta, L. caradocensis, L. abietina, L. foveolaris, L. pachycarpa, 

 L. milliaria, L. cameola, L. endoleuca, L. effusa, L. parasitica. 



Of the genus Opegrapha, 0. lyncea, and 0. viridis, Stigmati- 

 dium crassum, and of the genus Arthonia, A. lurida, A. spadicea, 

 A. punctiformis , A. epipasta, A. pruinosa, Gracilis elegans, G. 

 inusta, G. sophistica. 



No species of Endocarpon has recently been found, and the 

 following species of Verrucaria do not now appear to be still 

 survivors of the former lichen-flora, viz. : — V. epigcea, V. immersa, 

 V. cinerea, V. biformis, V. chlorotica, V. nitida, V. olivacea, V. 

 umbrina, V. clopima. 



In estimating the number of extinctions it is, of course, possible 

 that in some cases species have been recorded in error, but, apart 

 from that eventuality, it is obvious from the foregoing list, which 

 supplements the list of undoubted extinctions, that the lichen-flora 

 of Leicestershire — and this remark may well apply to all the other 

 midland counties — is fast diminishing. 



HEPATICiK. 



Of the hepatics of Leicestershire it may be stated that, with 

 additions since the publication of the flora in 1886, some fifty 

 have been recorded or met with. Of these probably two, Sj)hcero- 

 carpus Michelii ( = terrestris) and Dumortiera hirsuta require to 

 be expunged as errors. 



Of the remainder the following appear to be extinct, viz. :-- 

 Blasia pusilla, Marsupella emarginata, Lophozia incisa, Myl^ 



