PLANT NOTES FOR 1913, ETC. 



317 



Grex. 22. Rivales. 

 *P. supina L. 

 *P*. norvegica L. 

 *P. intermedia L. 



var. canescens Ruprecht. 

 Grex. 25. Chrysantheae. 

 *P. thuringiaca Bernh., 



var. Nestleriana Schinz & 

 Keller. 

 Grex. 28. Aureae. 

 P. alpestris Hall.f. 

 (P. Crantzii Beck.) 

 P. verna L. 

 Grex. 30. Tormentillae. 

 P. Tormentilla Neck. 

 (P. erecta Hampe) 

 var. strictissima Focke. 

 var. sciaphila T. Wolf. 



P. procumbens Sibth. 



P. procumbens x Tormentilla 



= P. suberecta Zimm. 

 P. reptans L. 

 var. microphylla Tratt. 

 var. mollis Borbas Fl. Buda 

 Pest, 162, 1879 

 P. reptans x Tormentilla 



= P. italica Lehm. 

 P. procumbens x reptans 

 = P. mixta Nolte. 



Grex. 31. Anserinae. 

 P. Anserina L. 

 var. sericea Hayne. 

 var. nuda Gaud. 



It will be observed that with the exception of P. alpestris and 

 P. Tormentilla the nomenclature agrees with that in my List. With 

 regard to the former Dr Wolf queries the identity of Fragaria 

 Crantzii Inst, ii., 178, on which Beck based his combination of 

 Potentilla Crantzii ; it is true in Index Keuensis it is referred to 

 P. verna, but the description " petalis maculatis can scaicelv refer 

 to any other Potentilla than this species. 



With regard to the name P. Tormentilla used by Dr Wolf the 

 Vienna Actes require the use of the earliest trivial, and that is secured 

 in the combination P. erecta Hampe, which is based on Tormentilla 

 erecta L. Dr Wolf, it will be observed, gives the authority for P. 

 Anserina var. nuda as Gaudin Fl. Helv. of 1828, but S. F. Gray in 

 the Natural Arrangement ii., 580, 1821, has the same name for a 

 variety briefly diagnosed as "leaves not silky." Gray too is the 

 earlier authority for P. palustre (sic) var. villosa (I.e., p. 581), which 

 is based on Plukenet's Irish plant (see Ray's Syn. 256, 1724). 



In the foregoing enumeration of species I have added an asterisk 

 to those species which are alien to our flora These species given in 

 my List may now be safely deleted, i.e., — (1) P. hejjtaphylla Mill, 

 which so far as the British plant is concerned is identified as P. 



