PART 1

Arthopyrenia atomarioides Müll. Arg., Bot. Jahrb. Syst. 6: 406. 1885. Type. CUBA. Wright, Lich.
Cub. II. 629 (G, holotype).
Verrucaria subpunctiformis Nyl., Lich. ins. guin. 51. 1889. Arthopyrenia floridana Zahlbr., Cat. lich.
univ. 1: 332. 1922, nom. nov. Type. FLORIDA. [Duval County:] Ft. George, 1887, Calkins
(FH, MICH, NY, US, isotypes?).
Naetrocymbe atractospora (Zahlbr.) R. C. Harris, comb. nov.
Arthopyrenia atractospora Zahlbr., Ann. Mycol. 33: 33. 1935. Type. FLORIDA. [Seminole County:]
Sanford, on Quercus, Jul 1928, Rapp137 (W 2451, holotype).
Additional specimen. ALABAMA. Baldwin County: Yupon Point, 1 Mar 1925, Evans 210 (MICH).
Naetrocymbe cedrina (Zahlbr.) R. C. Harris, stat. et comb. nov.
Arthopyrenia sanfordensis var. cedrina Zahlbr., Ann. Mycol. 33: 33. 1935. Type. FLORIDA.
[Seminole County] Sanford, on Taxodium, Oct 1922, Rapp 135 (W 2459, holotype).
The type and the Gilchrist County collection are on Taxodium, the Duval County and Alabama collections
on Myrica. Microscopically rather similar to N. fraxini, this species is distinct in the smaller more globose
ascomata, substrate and distribution.
Naetrocymbe fraxini (Massal.) R. C. Harris, comb. nov.
Arthopyrenia fraxini Massal., Ric. auton. lich. crost.167, f. 333. 1852. Type. "Ad truncos Fraxini
ubique in regno Veneto. Massal.", Massal. Lich. Ital. 298A (BM, lectotype, Coppins, 1988, not
seen by me).
Naetrocymbe megalospora (Lönnr.) R. C. Harris, comb. nov.
Arthopyrenia megalospora Lönnr., Flora 41: 634. 1858. Type. SWEDEN. Fries, Lich. Suec. 244
(FH-Tuck 4067, isolectotype, Harris, 1975).
Foucard (Graphis Scripta 4: 49-60. 1992) has placed this in synonymy with N. fraxini on no better
grounds than those by which I recognize it, speculation. The ascospores seem significantly larger to me. I
prefer to keep the question open and therfore make the combination in Naetrocymbe.
Naetrocymbe massalongiana (Hepp) R. C. Harris, comb. nov.
Sagedia massalongiana Hepp, Flecht. Eur. 444. 1857. Type. SWITZERLAND. Zurich and Liestal,
Hepp (NY).
This species has been previously synonymized with N. saxicola (see below) but the asci and ascospores
are larger than in the probable type of N. saxicola (Massalongo, Lich. Ital. 348). The asci are 75-85 × 20-25
µm vs. ca. 50 × 20 µm and are less distinctly pyriform than in N. saxicola. The ascospores are 18-25 × 6-7(-8)
µm vs. 16-20 × 4-5 µm. A broader study may find these differences trivial and recognition here is mainly
intended as a stimulus for such a study. There are apparently two colections distributed in Hepp 444 and I
have no way of making an intellegent lectotype. Hepp's description is also apparently mixed. The illustration
of the ascus and the measurements of ascus and ascospores agree with the Naetrocymbe. The 4-celled
ascospores would seem to belong to Trichothelium lineare which is mixed in one of the NY packets of Hepp
444. Its previous synonymization with N. saxicola would seem to indicate maintaining the name for the
Naetrocymbe. It is not known from North America.
Naetrocymbe punctiformis (Pers.) R. C. Harris, comb. nov.
Verrucaria punctiformis Pers., Ann. Bot. (Usteri) 11: 19. 1794. Arthopyrenia punctiformis auct.
non Massal. Type. "Verrucaria punctiformis", sine loca in herb. Persoon (L, lectotype, Riedl,
1977, not seen).
Arthopyrenia padi Rabenh., Lich. Eur., fasc. 14, 390. 1858. Type. "an Prunus Padus bei
Hermsdorf in Bilaer Grunde in der sächse Schweiz." (MICH, isotype).
One of the benefits of the removal of this species to a genus other than Arthopyrenia is that it allows
Persoon's sacred, although commonly misapplied, epithet to be taken up again legitimately. (Because of the
existence of Arthopyrenia punctiformis Massal. which excluded Persoon's name, I have been using A. padi
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