60 

 B. Enemies of Acacia. 



Phyllosticta phyllodiorum, Sacc, n. sij. 

 Septoria phyllodiorum, Sacc, n. sp. 

 Uromyces digitatus, Wint. 



" (Pileolaria) Tepperianus, Sacc. 

 Uredo notabilis, Ludw., n. sp. 

 Capnodium elong'atum, Berk, et Cke. 

 Stereum hirsutum (W.), Fr. 

 ** Kalchbrenneri, Sacc. 



III. On the Position of Clathrus (Ileodictyon) Tepperianus, 



Luchv. 



Since I published the description of a species differing from all 

 forms of Clathrus hitherto knov/n under the above name (Bot. 

 Centralblatt, Nov. 27, 1890), a larger work of one of the best 

 authorities in respect of the Phalloideae has appeared (" Unter- 

 suchungen zur vergleichenden Entwichlungsgeschichte und 

 Systematik der Phalloideen," von Dr. E. Fischer, in Denkschriften 

 d. Schw. Naturf. Gesellsch., vol. 32, part i., 1890). In this work 

 the distinguished mycologist reduces several hitherto separate 

 kinds into wider species. This he does also with the hitherto 

 distinct species oi Clathrus (Ileodictyon) cibarius (Tuh), Fischer, 

 (with transversely ridged branches), and Clathrus gracilis (Berk.), 

 Schlecht (branches delicate and smooth). With the union of 

 these two species the independence of C. Tepperianus would also 

 cease, as the latter stands between the two former. It resembles 

 C. cibarius in the dimensions and the breadth of the reticulating 

 branches, and approaches the C. gracilis'type by their smoothness, 

 but does not nearly reach the dimensions of some species in the 

 London and Paris collections. From the standpoint of Dr. 

 Fischer the three hitherto recognised species, C. cibarius, C. Tep- 

 perianus, and C. gracilis, would have to be united under the name 

 C. cibarius (TuL), Ed. Fischer. Herr Fischer, however, writes to 

 me : — " To be quite sure in the union of these species, all the 

 connecting links of the series should certainly be before me, at 

 least in the form of spirit specimens, and even then it would not 

 be certain whether these different forms were individual vai iations 

 or constant varieties. Only observations in the respective locali- 

 ties or artificial cultivation can decide this point." 



To initiate and encourage such observations and cultural ex- 

 periments in loco has been the motive for the above remarks. 



