Dearness: North American Fungi 



355 



27. Septoria Sarcobati Dearn. & Barth. sp. nov. 



Pycnidia nearly black, immersed in the somewhat reddened 

 calyx wings, amphigenous, sometimes widely perforate, with the 

 spores issuing in pale cirrhi ; 90-200 ft in diam., wall thin. 

 Sporules straight or curved, obtuse, 1 -septate, 30-45 X 5-6/*,. 



On calyx wings of Sarcobatus vermiculatus (Hook.) Torr., 

 Tromberg, Mont., Sept., 191 3, E. Bartholomew 5324. 



28. ( ?) Melasmia Menziesiae Dearn. & Barth. sp. nov. 



Stromata externally black, reticulated over a yellowed area, 

 .5-1 cm., epiphyllous, consisting of a whitish, pseudo-prosen- 

 chymatic layer about .3 mm. thick ; the sporif erous tissue in radi- 

 ating, narrow ridges. Conidia 3X1^ or less on a basidial 

 stratum 8-10 /x in depth. 



On living leaves of Menziesia ferruginea Sm., Duckabush, 

 Wash., Aug., 1912, E. Bartholomew 4845. Type collection, Fung 

 Columb. 5035. 



29. Leptothyrella Caricis Dearn. & Barth. sp. nov. 



Pycnidia carbonous, dimidiate, astomous, superficial, .2-7 X 

 .2-3 mm. One or a few short bristles are found on an occa- 

 sional pycnidium. Sporules hyaline, 20-25 X 3-4 obscurely 



I - septate, in some instances appearing 2-3-septate. 



On withered leaves of Car ex stricta Lam., Stockton, Kansas. 

 May, 1 91 3, E. Bartholomew 5019. Type collection, Fungi 

 Columb. 50JI. 



30. Gloeosporium Ailanthi Dearn. & Barth. sp. nov. 



Spots circular, .5-1 cm., bordered, grayish-brown, similar 

 beneath except that the border is not definite, often confluent, cir- 

 cinately ridged. What may be Cercospora glandulosa Ellis & 

 Kellerm. is on the same spots. Acervuli epiphyllous, large, 180 fi, 

 dark, waxy. Spores hyaline, oblong with rounded ends, some of 

 them appearing septate probably due to grumous particles gather- 

 ing towards the ends and leaving a clear space near the middle, 



II- 16 X 5-7 j"<, mostly about 13 X 6/x. 



On living leaves of Ailanthus glandulosa Desf ., Shreveport, La * 

 Oct., 191 3, E. Bartholomew 5400 (b). Type collection, Fungi 

 Columb. 3021. 



