Garman: Porto Rican Parasitic Fungi 
335 
In the following descriptions of the genera related to Dimero- 
sporium and originally included under this head by Saccardo, the 
work of Thiessen^ has been followed rather closely. Several 
species commonly |cnown as Parodiella seem to fall within the 
limits of this classification, and have been moved to what appears 
to be a more natural position within the “ Dimerineae.” . 
Dimerium Sacc. & Syd. 
I. Dimerium Cayaponiae sp. nov. 
Spots black, sooty, epiphyllous and irregular in outline, never 
more than 3 mm. in diameter ; perithecia black, globose, 0.12 mm/ 
in diameter; asci linear-clavate, eight-spored, 33.6-36 X 2.4 ju.; 
spores two-celled, dark, smoky, one cell considerably smaller than 
the other, 7 . 3 - 9.6 X 3-6-5 {PI- i/i, f- 5-) 
On leaves of Cayaponia americana (Lam.) Cogn. in Porto 
Rico: Utuado, 4360 (type). 
The dark, black spot is characteristic of the species. This is 
formed partly of discolored host tissue and partly of a dense 
compact fungous mycelium. 
2. Dimerium grammodes (Kuntze) comb. nov. 
Dothidea perisporioides Berk. & Curt. Grevillea 4: 103. 1876. 
Sphaeria perisporioides Berk. & Curt. Grevillea 4 : 102, 107. 1876. 
Dothidella grammodes Sacc. Syll. Fung. 2 : 634. 1883. 
Dothidea grammodes Berk. Jour. Linn. Soc. 10: 341. 1869. 
Dothidea seminata Berk. & Rav. Grevillea 4: 104. 1876. 
On leaves of Crotalaria retiisa L., Phaseolus lunatus L., 
Meibomia adscendens O. Kuntze, and an undetermined legume 
belonging to the Papilionaceae, in Porto Rico : Maunabo. Papi- 
lionaceae, 2432; Utuado, 4418; Aguadilla, Phaseolus lunatus, 
302 j ; Guayama, Cabo Rojo, Crotalaria retiisa, 3333, 6480; Rio 
Piedras, Meibomia adscendens, 5723. 
This pretty and widespread species occurs, as can be seen from 
the above, on a variety of leguminous hosts in Porto Rico. It 
does not differ essentially from the descriptions of the species 
from other parts of the world. The specific name grammodes 
2 Zur Revision der Gattung Dimerosporium. Botanische Centralblatt 29: 
Pt. 2; 45-73. 1912. 
