Parr 1, 1922| PHYLLOSTICTACEAE 75 
299. Phyllosticta borinquensis E. Young, Mycologia 7: 147. 1915. 
Spots circular usually, or subcircular, occasionally more or less irregular in form, yellow- 
ish or whitish in the center, surrounded by a reddish-brown area, reaching a diameter of 5 mm. 
or rarely larger, faintly visible on the under side of the leaf; pycnidia abundant, rather thickly 
clustered near the center of the spot, visible on the under side of the leaf but apparently 
opening on the upper side, reaching a diameter of 100-200 »; spores ovoid, 1-1.5X 2.5-5 mu. 
Accompanied by an Ascomycete which may be its perfect stage. 
ON STERCULIACEAE: 
Helicteres jamaicensis Jacq., Porto Rico. 
Type Locatiry: San German, Porto Rico, on Helicteres jamaicensis. 
DISTRIBUTION: Porto Rico. . 
300. Phyllosticta discincola Ellis & Ev. Proc. Acad. Phila. 
1893: 454. 1893. 
Spots circular, subcircular, or more or less irregular in form, visible on both sides of 
the leaf, elevated on the upper side and depressed on the under side with a distinctly elevated 
border, reaching a diameter of 4 mm., yellowish or yellowish-white; pycnidia sparingly scat- 
tered over the surface of the spot, erumpent, restricted to the upper surface of the leaf, reach- 
ing a diameter of 100-110»; spores rather abundant, ellipsoid, 2-3 X 4-5 u. 
ON OLEACEAE: 
Forsythia sp. (cult.), District of Columbia 
TYPE LOCALITY: District of Columbia, on Forsythia sp. 
DIstRIBUTION: Known only from the type locality. 
Abutilon umbellatum 
P. hibiscina, 39 
Acanthospermum australe 
P. Acanthospermi, 62 
Acanthospermum xanthioides see 
Acanthospermum australe 
Acer dasycarpum see 
Acer saccharinum 
Acer Douglasii 
P. minutissima, 69 
Acer glabrum 
P. minutissima, 69 
Acer Negundo 
P. Negundinis, 21 
Acer pennsylvanicum 
P. minutissima, 69 
Acer platanoides 
P. saccharina, 19 
Acer rubrum 
P. minima, 50 
Acer saccharinum 
P, minima, 50 
P. minutissima, 69 
Acer saccharinum see also 
Acer saccharum 
Acer saccharum 
P. saccharina, 19 
Acer spicatum 
P. minima, 50 
Achras Sapota see 
Sapota Achras 
Adiantum tenerum 
P. adianticola, 27 
Adoxa Moschatellina 
P. Adoxae, 65 
Aesculus flava see 
Aesculus octandra 
Aesculus glabra 
P. aesculicola, 72 
Pp. Paviae, 21 
Host-index to Phyllosticta 
Aesculus Hippocastanum 
P. Paviae, 21 
Aesculus octandra 
P. Paviae, 21 
Aesculus Pavia 
P. Paviae, 21 
Agrimonia gryposepala 
P. decidua, 60 
Agrimonia striata 
P. decidua, 60 
Albizzia Lebbek 
P. divergens, 45 
Athaea rosea 
P. altheina, 56 
Amaranthus retroflexus 
P. Amaranthi, 15 
Amaryllis purpurea 
P. Hymenocallidis, 12 
Amelanchier alnifolia 
P. innumerabilis, 52 
P. paupercula, 68 
Amelanchier canadensis 
P. virginiana, 70 
Amelanchier sp. 
P. innumerabilts, 52 
P. virginiana, 70 
Ampelopsis arborea 
P, viticola, 41 
Ampelopsis quinquefolia see 
Parthenocissus quinquefolia 
Amphipterygium amplifolium 
P, Amphipterygii, 47 
Amygdalus Persica 
P. circumscissa, 46 
P. Persicae, 46 
Anemone canadensis 
P, anemonicola, 63 
Anemone cylindrica 
P. anemonicola, 63 
