PAPERS ON BOTANY 1898 
Mayaguez, 836, Catafio, 4090, Pueblo Viejo (Stevenson), 
3985. 
On Rhynchospora corymbosa, Mayaguez, 836, Catafio 5254, 
Rio Piedras, 9277. 
Cintractia limitata, Clint. On Mariscus ligularts, Manati, 
5309. 
On Cyperus ligularis, Boqueron, 4854, Mayaguez, 1850, 
Santurce, 1852. 
Cintractia utriculicola (P. Henn.) Clint. On Rhynchospora 
corymbosa, Mayaguez, 106la. On Rhynchospora aurea, May- 
aguez, 6783, 836a. 
Ustilago Rouss 
Ustilago affimis, E. and E. On Stenotaphrum secundatum, 
Arecibo, 1758, Bayamon, 1891, Ponte Santiago, 2458, S. herm- 
aphroditum, Rio Piedras, 7604. 
Usttlago zeae, (Beck.) Ung. On Zea mays, San German, 
5812. 
TILLETIACEAE 
Burrillia Setch. 
Burrillia echinodori, Clint., on Echinodorus cordsfolms, 
Guanica, 335. 
UREDINALES 
PUCCINIACEAE 
Puccinia Pers. 
Puccima hydrocotyles (Link) Cook. 
On Hydrocotyle australis (Stevenson), 3979. 
Puccinia huberi. 
On Panicum utowanaeum, Mona Island, 6348. 
Cerotelium Arth. 
Cerotelium conavaliae. 
On Conavalia gladiata, Rio Piedras, 9278, 9504. 
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