14 ILLINOIS BIOLOGICAL MONOGRAPHS [482 



If we accept for M. glabra the description given by Gaillard and 

 as belonging to it the specimen distributed by Rabenhorst and Winter 

 as No. 3849, Fungi Europaei (See Fig. 4) on Barbacenia purpurea we 

 must think of this as a form with a dense, closely matted mycelium with 

 mycelial threads coursing more or less parallel. This is typically the 

 condition of the Meliola on Hypelate. 



4a. Meliola glabra var. psychotriae var. nov. 



There is a remarkable variation here in that many of the colonies 

 are very small, of rapidly branching, closely matted mycelium, while 

 others are of looser structure and larger in area. 



The small, closely matted colonies approach quite closely to the type 

 while the loose colonies deviate from it widely. 

 On Palicourea domingensis (Jacq.) DC. 



Florida Adentro, July 1, '15, 7649 (type). 

 On Psychotria hertiana P. 



El Alto de la Bandera, July 15, '15, 8673, 8654, 8278, 8710, 8566, 

 8646. El Gigante, July 17, '15, 8528. 

 On Psychotria puhescens Sw. 



Arecibo - Lares Road, June 21, '15, 7281. Vega Baja, July 2, '15, 

 7732, July 2, '15, 7741. Dos Bocas, below Utuado, July 8, '15, 8032. 

 On Psychotria grandis Sw. 



Mayaguez, June 25, '15, 7487. 

 On Psychotria sp. Quebradillas, Nov. 22, '13, 5032. 



Vega Baja, Mch. 1, '13, 516. 

 On Palicourea 1 



Mayaguez, May 1, '13, 1070 b. Jan. 30, '13, 316. Vega Baja, Feb. 

 20, '13, 468. Dos Bocas, below Utuado, Dec. 30, '13, 6650. El Gigante, 

 Dec. 15, '13, 5944. Ponce, Nov. 8, '13, 4367. Maricao, July 20, '15, 

 8875. 



On Coccocypselum repens Sw. 



Maricao, July 20, '15, 8961. 



5. Meliola sepulta Pat. in herb. 



On Avicennia nitida Jacq. Fig. 5. 



Two specimens were collected by Heller, Nos. 390, Jan. 31, '89, 

 6416, Jan. 17, 1903 ; both of these in the Bronx Garden bear the above 

 name, but description has not yet been published. The following de- 

 scription is made from a fragment of specimen No. 390 which becomes 

 the type: 



Colonies circular, 1-7 mm. in diam., black, dense, mostly hypophyl- 

 lous, mycelium closely branched, producing a closely woven mat. Capi- 



