511] MELIOLA IN PORTO RICO — STEVENS 4S 



On Lasiacis compacta (Sw.) Hitch. 



Utuado, Nov. 8, '13, 4643, 4663. 

 On Lasiacis divaricata (L.) Hitch. 



Arecibo, Jan. 17, 14, 6810. Manati, Nov. 5, '13, 4298. Vega Alta, 

 Nov. 5, '13, 4195, 4189. Vega Baja, Nov. 5, '13, 45J7. Nov. 22, Arecibo, 

 by Mrs. A. Chase. 

 On Lasiacis swartziana, Hitch. 



Aiiasco, Oct. 12, '13, 3561. Las Marias, July 10, '15, 8191. 

 On Oplismenus setarius (Lam.) Roem. & Schult. 



Maricao, July 19, '15, 8776. 

 On Andropogon leucostachyus H. B. K. 



El Alto de la Bandera, July 15, '15, 8671. 

 On Andropogon bicornis L. 



Las Marias, July 10, '15, 8168. Vega Baja, July 2, '15, 7751. 

 On Olyra latifolia L. 



El Miradero, Aug. 4, '15, 9159. Mayaguez Mesa, June 25, '15, 7485^ 

 7486, June 29, '15, 7587, June 24, '15, 7390. Maricao, July 20, '15, 

 8959. San German, June 27, '15, 7518. Arecibo, Jan. 17, '14, 6805. 

 On Chloris petraea Sw. 



Mayaguez, Aug. 1, '15, 7810. 

 On Ichnanthus pallens (Sw.) Munro. 



Maricao, Apr. 3, '13, 829. Monte de Oro, Dec. 3, '13, 5755. Maya- 

 guez Mesa, June 25, '15, 7441, 7485. 

 On Gramineae indet, 



Monte de Oro, Dec. 3, '13, 5659. Arecibo, Jan. 17, '14, 6796. Tru- 

 jillo Alto, Aug. 15, '15, 9441. 



The type was collected by Heller near Santurce, Porto Rico. 



The form on Panicum glutinosum and Ichnanthus is usually 

 densely parasitized; the setae do not develop typically, nor are the 

 capitate hyphopodia as likely to be angular as when on the other hosts 

 listed. 



The mycelium upon Lasiacis swartziana, L. divaricata, Paspalum 

 schreherianum, Olyra, Oplismenus, the Andropogons and Ichnanthus is 

 frequently straight for great distances, but this I take to be due to the 

 surface of the host rather than to a specific difference in the fungus. 



57. Meliola rudolphiae sp. nov. 



Mycelium strictly epiphyllous in circular spots or diffuse, black. 

 Mycelial setae abundant, long, 400//., black, tapering, septate, acute, sim- 

 ple ; mycelium crooked. 



Capitate hyphopodia alternate, stalk cell short, 3-6/li, head cell ir- 



