348 THE .TOFRXAL OF BOTAXY 



Sfagono>ipora AtripJicis Lind, Dan. Fung. 1913, p. 444, \)\. (>, 

 figs. 79, 80. 



In addition tliere are two American species, descril)ed as liaving 

 much broader spores (7-11 yi/), which may possibh' T)e different :— 



Sfac/ouospora Clipnopodil Peck, 40th He]). N. York State Mus. 

 Fhleoapom Chcnopodii Ell. et Kell. Journ. Mycol. 1.S8S, iv. 2G. 



And also a third American species which is described as having 

 elongate-elliptical spores, but does not seem to differ otherwise:- — 



Diploilina EVisii Sacc. Svll. iii. 412 = Dip1o(lia Injalospora 

 C. et Kll. in Grevill. vii. 5 (1878). 



Subjoined is the description of the fungus, as I have met with 

 it:— 



Septoeta Ciienopodii Westd. 



Spots (on the leaves) roundish, at first pallid-green, then becom- 

 ing ochraceous and dry with a narrow faint border-line. Pycnidia 

 anii)higenous, but mostly epiphvUous, numerous, often ± concen- 

 tricallv arranged, at fii^t fuscous, then blackish, globose, 100-220 )it 

 diam., with a slightly projecting pierced ostiole ; texture yellowish 

 brown, plectenchymatous, except round the darker ostiole. Spores 

 cvlindric-oblong, broadly rounded at the ends, often inecpiilateral or 

 curved or bent, hyaline, but very fainth^ yellowish in mass, granular 

 within or 2-8-guttulate, for a long time continuous, 12-10x3-4^/, 

 then usually 1-septate, in a few cases 3-septate or ver}' rarely 

 5-septate, 18-28 x 4-6 fx (or even 7 ^) Avhen mature. 



On living leaves of Afriplex and CJienopodium. 



Yar. nov. EMACULATAmaculis obsoletis. When on the stems there 

 are no distinct spots and the pycnidia are scattered, but the spores 

 are the same. This is equally true of the form recently found on the 

 succulent leaves of Afriplex Bahinr/fonii and its allies, on sandy 

 sea-shor.'s. Avrshire, by Mr. D. A. Bo'vd. 



SHORT NOTES. 



POTAMO(JETOX T'PSAIJEXSTS Tis. TX EXCJLAXD. Miss Ida i\I. 



Roper sent me in the autunni of 1910 specimens, collected in 

 the ])receding June, from a Millpond near Wool, Dorset, doubtfully 

 named '' P. lucena f." This year she has kindly sent me a series 

 in the fresh state. It is one of a set of ])lants that come under 

 P. drclpitnn Nolte (agg.), or at least are so ])laced by Graebner and 

 Hagstn'MU. The original dec/piens of Nolte is no doubt, as the late 

 Mr. Fryer always contended, P. lucens X pei'foliafusc, but with their 

 usual procedure Ascherson and (iraebner (Syn. Fl. Mittenp. 329: 

 1897) reversed the order of the names. The series of names— 

 JP. I'li-drcipinis, P. hf'ro//'/'/fs-/'s, P. ii pxtil lrui<iiiy P. s^dlicij'olius and 



