A NEW NITELLA 43 
Characee,* describes a new species, 7. giennensis, in which the 
antheridia and fruits are produced on agian branches, and in 
this ae oo the antheridia are very lar, 
s discovery of a fresh aes member of the 
Polyantiesaaieyle is of great interest, as this group are for the 
most part plants of the Southern Hemisphere, nine species 
belonging to Australasia, lex to South America, and three to 
South Africa. In the Northern Hemisphere, one species occurs 
in North America, one in Japan, one in the Sandwich Islands, one 
in West Africa, and two, N. ornithopoda and N. Dixonti, in 
Western Europe. For the purposes of this summary of distribu- 
tion the numbered plants in Braun and Nordstedt’s Pragmente are 
taken as species, with the addition of others subsequently 
described, and, as they stand, it is a curious inate that each species 
is confined to one of the districts mentioned, and almost all of 
them are apparently restricted to comgueulina — areas. 
doubt further research will result in the combination of som 
the present species and the extension of the known distribation of 
others, but it seems evident that in this section there are no 
species with a very extended range. 
ee OF piecioh i 
- Portion of female plant, nat. s: 2. Ditto, tufted form. 3. Portion of 
male peers nat. size. 4, Branchlet ot “fertile wher, female, x 6. 5, 6. Tips 
of end-segments, x c.100. 7. Antheridia, x 50. 8. Fruit, x 50. 9. Oospore, 
x 50. 
SOME SCOTTISH RUST FUNGI. 
y Maucozum Wiison, D.Sce., F.L.S. 
Lecturer in Meteo sae, of Edinburgh. 
the summers of 1913 and 1914, for the most part in alpine 
the work on the British Rust Fungi: by W. B. Grove | (1913), 
and references to several of the papers mentioned will be found in 
this book. The list of the British Uredinales, published by Mr. 
(1913), and the book on Mi weer Rusts and Smuts, by Mr. 
Massee (1913), have also been consulted. I wish to express my 
anks to Mr. Ra coer for nes yadicnbil help in the identifica- 
tion of some of the specie 
Pucornta Prost Moug. 
Puccinia Prostii has been recently recorded in Britain by 
Massee on cultivated tulips, but no nalts onal geo is given. 
On the Continent it has been found in Fra and Italy on 
Tulipa sylvestris and T. australis. This rust eae recently "aie 
covered in the Royal Botanic Garden, Edinburgh, attacking a bed 
* Dr. E.R. Prosper, Las Carofitas de Espana, Madrid, pe 
