244 



Most nearly allied to Stilbum connatum, Kalchbr. & Cooke, 

 differing in the straw-coloured head and stem, and in the smaller 

 spores. 



Graphiothecium parasiticum, Desm. On very much decayed 

 hawthorn branch. Arboretum, G. Nicholson. 



Uredinaceae. 



Uromyces Dactylidis, Otth. The aecidial form on Ranunculus 

 repens, L. ; uredo- and teleutospore-forms on Dactylis glomerata. 



Queen's Cottage Grounds, G. Nicholson 



Q 



Wint. On living leaves of Rumex acetosa, L., 



Puccinia Glechomatis, DC. On living leaves of Nep 

 enth., Queen's Cottage Grounds, G. Nicholson. 



Explanation op Figures on Plate. 



Fig. 1. Pyreiwcliaeta Pkloxidix, Massee ; section of Phlox stem showing" two 



perithecia, mag. 



2. Spores of same, highly mag. 



3. Milotcia amethystine*, Massee ; group of plants on dead wood, slightly 

 mag. 



4. Spores of same, highly mag. 



„ 5. Atcochyta Co<ikei % Massee; fungus on living leaf of "Sweet William," 



nat. size. 



M 



M 



»f 



„ 6. Spores of same, highly mag. 



„ 7. Portion of fruiting hypha of Ram nl aria Necator, Ma 



„ 8. Spores of same, highly mag. 



„ 9. Clonodachys Simmonsiij Massee; entire fungus, mag. 



„ 10. Spores of same, highly mag. 



„ 11. Chaetommm lageniforme, Corda ; entire fungus, mag. 



»? 



12. Spores of same, highly mag. 



, f 13. Stilbum sphaerocephah'in. Massee : group of plants, mag. 

 „ 14. Spores of same supported on tips of hyphae, highly mag. 



*j 



15. E<eQgporium laricihum, Massee; group of plants on a larch branch, 



nat. size. 



„ 16. A single plant of same seen from above, mag 



.. 17. Section of a plant of same, mag. 



„ 18. Group of spores of same, highly mag. 



n 19. Hypholoma peregrimm, Massee ; nat. size. 



<s& 



XXXIX.-A NEW CHINESE RHODODENDRON. 



W. B. Hemsley and E. H. Wilson. 



Rhododendron (§ Azalea) Mariesii, Hemsl. et E. H. Wila. ; species 



critica complm-ibus plus minusve arete atfhiis, R. Weyrichii, 

 Maxim., proxima, differ! foliis in ramorum apices saepissime 

 terna et gemniarum floriferarum squamis glabris ; a R. rhombico, 

 Miq., ramulis glabris, foliis lanceolatis pilis longissimis appressis 

 Bubtus vestitis et squamis latioribus recedit : a R. Fanrra?, Tate, 

 cum qua cl. Diels haec conjungit, foliis tofnil inulto majonbus 



membranaceis minute reticulatis differt. _ 



W. B. H. 



