Moelleriella, and Samuelsia - CBS

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Ne o t r o p i c a l Hy p o c r e l l a, Mo e l l e r i e l l a, a n d Sa m u e l s i aFig. 21. A–O. Samuelsia rufobrunnea. A–D. Stromata at different stages of development. A–B. Young stromata containing conidiomata. C. Stroma containing conidiomataand perithecia. D. Stroma containing perithecia. E–F. Section of stroma showing perithecia (white arrow) and conidiomata (black arrow). G. Section showing outermost layer ofstroma. H. Section showing inner layer of stroma. I–J. Asci. K. Ascospores. L. Phialides and paraphyses. M–N. Phialides. O. Conidia. A–O: CUP 067858 (holotype). Bars: A–D= 1 mm; E–F = 100 µm; G–O = 10 µm.Perithecia not observed. Stromata pulvinate, (1–)1.5–2 mmdiam, with a narrow base, greyish yellow to dark brown, nohypothallus or very thin, cream-coloured, stroma surface generallysmooth, glossy; KOH-; stroma tissue of compact textura intricata.www.studiesinmycology.orgConidiomata as simple depressions of stroma surface, openingswide and elongated, irregular, deep, U-shaped, scattered, conidialmasses not seen; conidiophores in a compact palisade, short;phialides cylindrical, tapering towards apices, (13.5–)16–19(–20.3)61
Ch av e r r i e t a l.Fig. 22. A–J. Samuelsia sheikhii. A–C. Stromata. B–C. Stromata after adding 3 % KOH. D–E. Section of stroma showing conidiomata. F. Section showing outermost layer ofstroma. G. Section showing inner layer of stroma. H. Phialides and paraphyses. I. Phialides. J. Conidia. A–J: CUP 067859 (holotype). Bars: A–C = 1 mm; D–E = 100 µm; F–J= 10 µm.× (1.3–)1.7–2(–2.2) µm; conidia small, hyaline, unicellular, smooth,allantoid, (5.5–)6–6.5(–7.7) × (1.8–)2(–2.5) µm, l/w (2.5–)3(–3.8).Paraphyses present, circinate.Habitat: On scale-insects on leaves.Known distribution: Chile (type locality).Specimens examined: Chile, Corral, on scale-insects on leaves, Dec. 1905, R.Thaxter (lectotype of A. intermedia designated here, and holotype of S. intermediaFH 3991!); Jan. 1906, R. Thaxter (FH 3990!).Notes: Micromorphologically, S. intermedia is indistinguishablefrom S. rufobrunnea. The species are distinguished by the distinctmacromorphologies of the stromata. In addition, S. rufobrunnea istropical (Bolivia and Peru) while S. intermedia is subtropical (Chile).There are several specimens in FH labeled as “A. intermedia”(Petch 1921), but only one reads “co-type.” Therefore, this speciesis lectotypified here with FH 3991. Although there are no DNAsequences of S. intermedia, the micro and macro characteristics ofthe anamorph place this species within Samuelsia.4. Samuelsia rufobrunnea Chaverri & K.T. Hodge, sp. nov.MycoBank MB511389. Fig. 21A–O.Anamorph: aschersonia-likeTeleomorphosis: Stromatibus pulvinatus, (2–)2.2–3.3(–4) mm diam, sub-brunneusvel brunneoluteus; ascosporae multicellulares, macrofusiformes, (42–)48–55(–57)× 1.5–2.5 µm. Anamorphosis: Stromatibus pulvinatus, pycnidium; phialides (14.5–)15.3–19.2(–22.5) × 1.3–1.5 µm; conidii allantoideus vel subelliposideus, (5.5–)6–6.2(–6.7) × (1.3–)1.7–2 µm, longitudo/crassitudo (3–)3.5–3.7(–4.5); paraphysisprescens, circinatus. Holotypus: CUP 067858.Stromata pulvinate, (2–)2.2–3.3(–4) mm diam, with a wide base,hard, pale yellow when young, then brownish yellow with a reddishtinge when perithecia are fully mature, no hypothallus, stromasurface generally smooth and glossy, KOH+, ostioles brownishorange; stroma tissue of compact textura intricata. Peritheciacompletely embedded in stroma, scattered. Perithecia, subglobose,320–380 × 110–120 µm. Asci mostly cylindrical to clavate,(98–)100–118(–120) × 5–6.5(–7) µm, caps 2–3 µm. Ascosporeshyaline, multiseptate, smooth, long fusiform to filiform, (42–)48–55(–57) × 1.5–2.5 µm.Conidiomata as deep depressions of stromal surface, from topview elongated and generally fusing with neighboring conidiomata,62
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Studies in Mycology 60 (2008)Neotro
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Studies in MycologyThe Studies in M
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CONTENTSAbstract ..................
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available online at www.studiesinmy
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Ne o t r o p i c a l Hy p o c r e l
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Page 53 and 54: Ch av e r r i e t a l.National Park
Page 55 and 56: Ch av e r r i e t a l.Chaverri (P.C
Page 57 and 58: Ch av e r r i e t a l.20. Moellerie
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Page 61 and 62: Ch av e r r i e t a l.Fig. 16. A-F.
Page 63 and 64: Ch av e r r i e t a l.Fig. 17. A-O.
Page 65 and 66: Ch av e r r i e t a l.Fig. 19. A-J.
Page 67: Ch av e r r i e t a l.Fig. 20. A-D.
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Page 73 and 74: Ch av e r r i e t a l.Petch T (1925
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Moelleriella, and Samuelsia - CBS

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