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JOURNAL OF MYCOLOGY. 



[Vol. I, 



lead to the suspicion th it there may be some error in the conclusions 

 arrived at by Dr. Farlow in referring to B. obovata, Fckl., the Massachu- 

 setts specimens on Bumex, investigated by him and having the "mature 

 spores long and narrow with 1 — 3 septa." We must either suppose that 

 B. obovata, Fckl., is more variable in this country than in Europe, or that 

 two species have been confounded. The latter appears to us the more 

 reasonable conclusion, w^hich is further strengthed by the fact that in 

 examining the material furnishe l by Dr. Farlow (for A. F. no. 220), 

 of which a part is still in our hands, one leaf was found agreeing^ in all 

 respects with the Ohio specimens, while all the others afforded only the 

 obovate spores without septa. As a further confirmation of the correct- 

 ness of this conclusion is the fact that on the specimen in Rabh. -Win- 

 ter's; F. Eur., no. 2885, one of the obovate spores was seen in a state of 

 germination, but still without any ti ace of a septum. 



Considering it, then, highly probable, and :n fact almost certain, that 

 the Ohio Bamularia is not the B. obovata described by Fuckel and dis- 

 tributed in the various European Exsiccati referred to, we have still to 

 consider whether, as Dr. Farlow has suggested in the papers already 

 mentioned, this is really a form of B. macrospora, Fres. The fact that 

 the fungus described by Fresenius under the name of Bamularia macro- 

 spora was found on a species of Campanula would lead us to suspect that 

 our fungus on Bumex might be different. In B. macrospora, Fres., the 

 hyphse are, according to that author, 1—2 septate below and the conidia 

 generally not septate, while in the Ohio specimens the hyphse are, so far 

 as we can see. without septa, and the conidia, as a rule, 1-septate. 

 Whether the conidia are concatenate we are uncertain, but the fact that 

 they show the scar marking the point of attachment only at one end, 

 would indicate that they are not, though two or three conidia were seen 

 with a knob at one end which might indicate either the formation of a 

 second spore or the commencement of germination. Fresenius does not 

 say whether his B. macrospora is on spots but Saccardo, in his Fungi 

 Italici 1003 thus figures it, though the hyphse in his figure are without 

 septa. Unfortunately we have no authentic specimen of Bamularia 

 macrospora, Fres., to enable us to decide the matter definitely, and mean- 

 while we here characterize the Ohio specimens under a separate name, 

 as follow^s : 



Ramularia becipiens, E. & E. 



Spots orbicular, gray, i—i cm., with a darker colored, narrow, raised 

 border. Tufts amphigenous, scattered, whitish. Hyphse fasciculate, 

 issuing in dense clusters through the stomata of the leaf, hyaline, contin- 

 uous, nearly straight, entire or subdenticulate above, 30—50 x 3 Coni- 

 dia clavate-oblong or simply oblong or more commonly cylindrical, 1-sep- 

 tate and mostly slightly constricted at the septum, exceptionally 2 or 3- 

 septate, 15—35 x 6—8 ends obtusely rounded. 



On leaves of Bumex crispus, Fairfield Co., Ohio, June 1883 (Keller- 

 man. 



