489] 



MELIOLA IN PORTO RICO — STEVENS 



21 



Tips of setae slightly curved or not at all 

 Setae very thin, 4/a 

 Setae thicker 



Branches quite uniformly at right 

 angles 

 Head cell not angular 

 Head cell angular 

 Branches not at right angles 

 Main mycelial threads running 



parallel 

 Main mycelial threads not parallel 



M. chamaecristicola 

 No. 27 



M. rectangularis No. 28 

 M. chicoccae No. 29. 



M. 



M. 



Setae thick, lOu, heavy walled 

 Not as above 

 Setae long, 125/a 



Spores 37 x 14/a M. 



Spores 50 x 14jii M. 



Setae not so long 



Colony very dense, threads 



agglutinated M. 



Colony dense, threads not 



agglutinated M. 



Colony not dense 



Head cell nearly globular M. 

 Head cell not globular M. 



pteridicola No. 30 

 molleriana No. 31 



cupaniae No. 32 

 ocoteae No. 33 



compacta No. 34 



miconiae No. 35 



triumfettae No. 36 

 maricaensis No. 37 



17. Meliola compositarum Earle 



Bull. N. Y. Bot. Card. 3 : 306, 1905. 

 On Eupatorium odoratum L. Fig. 15 



Dos Bocas, below Utuado, July 8, '15, 7977, 8055, Dec. 16, '13, 6056, 

 6001, Dec. 30, '13, 6574. El Gigaute, July 10, '15, 8537. Arecibo-Lares 

 Road, June 6, 21, '15, 7309. El Miradero, Aug. 4, '15, 9168. Florida 

 Adentro, July 1, '15, 7689. Las Marias, July 10, '15, 8155. Rio Tan- 

 ama, July 6, '15, 7825. Maricao, July 19, '15, 8798. Aibonito, July 16, 

 '15, 8466. Rosario, Nov. 27, '13, 3771. Utuado, Nov. 8, '13, 4683. May- 

 aguez, Oct. 31, '13, 3898. ^Yauco, Oct. 3, '13, 3241. Catano, Nov. 6, '13, 

 4185. Jajome Alto, Dec. 3, '13, 5756. 



Also collected by Heller, No. 141, Rio Piedras, and No. 6185 on the 

 same host, Adjuntas; and on "Willoughbaea. These all agree with 

 Earle 's cotype No. 6185. In some instances, especially in No. 5756, 

 there is some variation in habit and the appendages are considerably 

 larger than mentioned in the description. 



