USA-Puerto Rico, En los alrededores de Mayagüez, as Yauco on the packets (Mayagüez District)
18.201111 -67.139722 +-1500m. WGS84
Hab. en la cara inferior de la hojas vivas de Psidium guajava L.
place_pub:Boletín de la Academia Nacional de Ciencias en Córdoba 26:341. Preprint 1923 [lournal part issued in 1924].; occurrenceRemarks:Holotype: LPS No. 661. Also the holotype of Isthmospora spinosa F. Stevens. The collection was originally cited for Meliola psidii Fr. : Fr. (cf. F. L. Stevens, 1916).