PART 1

9. Ascospores small, 16-22 × 8-9 µm; ascomata on old wood, raised,
± constricted at base; clypeus elongated in direction of grain;
Dominican Republic ........................................................................................[Julella sp. 19512-A]
2. Ascospores becoming brown, ± biseriate, 28-36 × 12-16 µm; ascomata
pyriform, immersed; anamorph in culture a Phoma;on intertidal
mangrove wood; India, Australia .............................................................[?J. avicenniae (Borse) Hyde]
1. Asci with 2 or 4 ascospores..................................................................................................................... 13
13. Asci with 2 ascopores........................................................................................................................ 14
14. Ascospores over 35 × 15 µm ...................................................................................................... 15
15. Growing on a wide variety of bark in dry habitats; ascoma not
strongly immersed; clypei often fused; ostioles often surrounded
by a whitish ring; ascospores 40-51 × 17-21 µm, with 9-11 rows
of cells; Dade and Seminole counties, also "Caloosa River",
Austin ...................................................................................J. geminella (Nyl.) R. C. Harris
15. Growing on Buxus sempervirens in Europe; ascoma immersed;
clypei may be fused; ascospores (26-)40-50 × (10-)16-20 µm,
with (4-)16 rows of cells (Barr, 1986) .............................................................. [J. buxi Fabre]
14. Ascospores 27-35 × 10-12.5 µm, with 8-9 rows of cells;
microconidia 14-17 × 0.5 µm; Texas ....................................... [J. dispora (Müll. Arg.) R. C. Harris]
13. Asci with 4 ascospores...................................................................................................................... 16
16. Ostiole apical, colorless............................................................................................................... 17
17. Ascospores 30-36 × 12-15 µm, with 7-9 rows of cells; ascomata
± superficial, with narrow hyphal ring; microconidia 15-18 × 0.5 µm;
eastern North America and Europe................................................... [J. lactea (Massal.) Barr]
17. Ascospores 30-36 × 14-17 µm with 6 rows of cells; ascomata
immersed under a broad hyphal ring (thin clypeus?); microconidia
7.5-11 × 0.5 µm; Australia ................................................... [J. exiguella (Bailey) R. C. Harris]
16. Ostiole lateral, red pigmented, olive brown in KOH; ascospores
40-50(-62) × 15-18(-22) µm, with 8-10 rows of cells; Bahamas
and Puerto Rico....................................................................... [J. declorans (Riddle) R. C. Harris]
Julella asema R. C. Harris, sp. nov.
NOTES
Julellae sublacteae similis sed ascis angustioribus et J. variiformis sed ascosporis latioribus, 24-33 × 10-
15 µm, 7(-9) × 2-4-septatis, microconidiis 7-9 µm longis.
Type. FLORIDA. Dade County: Everglades National Park, just N of Paurotis Pond, Paurotis-buttonwood
hammocks surrounded by red mangrove, on Rhizophora mangle, 11 May 1967, Harris 2663-A (NY, holotype).
81