NEW OR NOTEWORTHY FUNGI 223 



diam.) which are crowded in patches and raised sHghtly above the 

 surface, usually the lower but occasionally the upper, of a leaf : in 

 the middle of the wart is the enlarged epidermal cell, full of 

 brilliant orange contents, surrounded by a number of colourless, 

 less hypertrophied epidermal cells. If the warts are numerous, the 

 leaf is crinkled, and often coloured crimson with anthocyan ; such 

 leaves are usually deformed and smaller. 



Sporangia, when formed, 9-10 in each sorus, irregular, angular, 

 oblong, polyhedral or roughly crescent-shaped, the membrane 

 colourless, thicker at the angles ; they are filled with bright-orange 

 granular contents, which later divide into very numerous little 

 rounded orange masses (swarm-spores) about 7 /x diam. At the 

 corners the mass of swarm- spores is not in contact with the 

 membrane, and at these points, when the sporangium is nearly 

 ready to dehisce, the flickering of the cilia can be easily seen. 



On radical leaves of Cirsium imlustre, near Widney Manor 

 Station, June. No doubt closely aUied to S. Taraxaci De By., 

 but showing small differences, especially in the fact that each 

 sorus forms only 9-10 sporangia. 



Explanation op Plates. 



Plate 542. — 1. Lei3?os^/i<«?ia Fuc/reZn, ascus andparaphysis, x 500 ; spores, 

 X 1000. 2. Sordaria coronifera, peritheeium in situ, x 50; ascus and single 

 spore, X 250. 3. Biaporthe stictostoma, ascus and spores, x 1000. 4. Phoma 

 lirelliformis var. aucubicola, twig of Aucuba, with the fungus, nat. size ; spores 

 (of two kinds?) and sporophores, x 1000. 5. Phoma Arctii, spores and sporo- 

 phores, x 1000. 6. Fusicoccum quercinwn, spores, x 1000. 7. F. (jlacosporoidcs, 

 spores and sporophores, x 1000. 8. F. Aceris, spores and sporophores, x 1000. 

 9. Septoria oxyspora var. culmorum, spores, x 1000. 10. Spliceronccma cornutum, 

 pyenidia, x 60. 



Plate 543. — 1. Ceuthospora Euomjmi,5ipore3. 2. Diplodia Saccardiana \a,r. 

 anglica, spores. 3. Hendersonia tenella, spores. 4. H. mollis, spores. 5. H. 

 tarda, spores. 6. Camarosporium ruhicolum, spores. 7. Dactylella plumicola, 

 spores. 8. Diploospora rosea, spores in chains and free ; a, a chain seen dry. 

 9. Acrotheca acuta, spores and sporophores. 10. a, Colletotrichum VoluteUa, 

 spores ; bristles x 100. h, C. Lineola var. Phragmitis, spores. 11. Lepto- 

 stroma spirmnum, stem of Spircca sp., with the fungus, x 2 ; spores. 12. 

 Leptothyriuni Platanoidis, portion of a leaf, with the fungus, x 5 ; spores. (All 

 spores X 1000.) 



AN OVEELOOKED BRITISH MINT. 

 By James Britten, F.L.S. 



Turning over the pages of Smith's Plantarum Icones hactenus 

 ineditcE (usually referred to as " Icon, ined.") my attention was 

 arrested by a note on the text accompanying t. xxxviii (fasc. 2, 

 1790). It may be worth while to record the results of the investi- 

 gation to which this led, leading as they apparently do to the 

 inclusion in British lists of a plant which, although hitherto 

 omitted from them, has as much — or perhaps as little — claim to a 

 place there as many that appear therein. 



It will simplify matters if I begin by transcribing from the 

 Icones what bears upon the point at issue, omitting Smith's detailed 

 description of the plant, 



