diff --git a/data/CC/D3/2E/CCD32E78A3B658F7A0B5E1EE12CA072B.xml b/data/CC/D3/2E/CCD32E78A3B658F7A0B5E1EE12CA072B.xml new file mode 100644 index 00000000000..c8a9be17d9b --- /dev/null +++ b/data/CC/D3/2E/CCD32E78A3B658F7A0B5E1EE12CA072B.xml @@ -0,0 +1,452 @@ + + + +The diversity of Acarosporaceae (Acarosporales, Lecanoromycetes) in California + + + +Author + +Knudsen, Kerry +0000-0001-5419-5729 +Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Kamýcká 129, Praha - Suchdol, 165 00, Czech Republic + + + +Author + +Cho-Ah-Ying, Jessica +https://orcid.org/0009-0001-4975-9355 +Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada + + + +Author + +Kocourková, Jana +0000-0001-5511-9752 +Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Kamýcká 129, Praha - Suchdol, 165 00, Czech Republic + + + +Author + +Hodková, Eva +0000-0002-8337-3253 +Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Kamýcká 129, Praha - Suchdol, 165 00, Czech Republic + + + +Author + +Malíček, Jiří +0000-0002-3119-8967 +Institute of Botany, The Czech Academy of Sciences, Zámek 1, CZK 252 43 Průhonice, Czech Republic + + + +Author + +Wang, Yan +0000-0002-5950-8904 +Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada & Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON, Canada + +text + + +MycoKeys + + +2025 + +2025-01-16 + + +112 + + +183 +210 + + + +journal article +10.3897/mycokeys.112.138580 + + + + + +Acarospora tejonensis +K. Knudsen & Kocourk. + +sp. nov. + + + + +Fig. 5 + + + + +Type. + + + +U. S. A. +• +Kern Co. +, +Tehachapi Mountains +, +Tejon Ranch +, +Martinez Ridge +, +fir and oak forest +, + +34.9352 +, +- 118.6477 + +, alt. + +1738 m + +, +on granite +, + +19 April 2016 + +, +K. Knudsen +18838 (SBBG-holotype, +isotypes +) + +. + + + + + + + +Acarospora tejonensis + +Knudsen 18838 Holotype ( +A – C, F, H +), Knudsen 18838 Isotype ( +D, E, G +) +A +habit of the thallus with prolongated marginal areoles +B +vertical section through apothecium and margin of areole +C +variability of the thallus, black areoles with immersed apothecia sometimes reduced to a prominent margin +D +vertical section through apothecium showing parathecium with narrow hyphae +E +thallus of areoles lining crevices +F +young asci showing tholus +G +paraphyses slightly widened at tips, terminal cells orange-brown +H +ascospores. Scale bars: 1 mm ( +A, C, E +); 100 µm ( +B +); 20 µm ( +D, G +); 50 µm ( +F +); 5 µm ( +H +). + + + + + +Diagnosis. + + +Similar to + +A. veronensis + +but with a thicker cortex, 30–50 (– 70) vs. 15–30 µm and a usually higher hymenium (100 –) 120 (– 150) vs. 80–90 (– 100) µm. + + + + +Etymology. + +Named after the type locality in Tejon Ranch in Tehachapi Mountains. + + + +Description. + + +Hypothallus endosubstratal, no algae observed. Thallus areolate, areoles +0.2–1.1 mm +wide, 150–270 µm thick, angular, contiguous to dispersed, marginal areoles can be prolongated and lobate, becoming elevated by a mycelial base, replicating by division, covering areas up to +4 cm +or more. Upper surface light to dark brown, sometimes partly black, epruinose, rugulose to smooth. Lower surface white. Epicortex lacking. Cortex 30–50 (– 70) µm thick, upper layer dark brown, 10–30 µm thick, lower layer hyaline, hyphae usually disarticulated, cells round to irregular, mostly small, 1–3 µm wide, rarely up to 5 µm wide. Algal layer up to 100 µm thick, uninterrupted, algal cells 8–12 µm wide, continuous below apothecia. Medulla white, +0.2–0.7 mm +thick, hyphae obscure in water, intricate and gelatinized, mostly 1 µm wide. Apothecia immersed, usually one per areole, sometimes 2–5, sometimes with areole reduced to a prominent margin, the disc dark, epruinose, same color as thallus, +0.1–0.3 mm +wide, rarely to +0.5 mm +wide. Parathecium indistinct to 20 µm wide of narrow hyphae 1 µm wide, merging with the cortex. Hymenium cupular, (100 –) 120 (– 150) µm tall, epihymenium dark reddish brown, 10 µm tall, paraphyses 1–2 µm wide, apices unexpanded or slightly widened in terminal reddish brown gel cap, hymenial gel IKI + reddish orange, hemiamyloid. Asci 90–120 × 10–20 µm, cylindrical to clavate, ascospore several hundred per asci, small, thin ellipsoid, 3–4 × 1 µm (n = 20). Subhymenium 20–40 µm tall, IKI + blue. Hypothecium indistinct to 10 µm thick. Pycnidia not observed. Chemistry: not producing secondary metabolites. + + + + +Habitat and distribution. + + +U. S. A. +, +California +. on Santa Rosa Island (Channel Island National Park), in Carrizo Plain National Monument, and in the Tehachapi Mountains, from +198–1738 m +, on sandstone and siliceous rock in full sun. + + + + +Selected specimens examined. + + + +U. S. A. +• +California +, +Santa Barbara Co. +, +Santa Rosa Island +, +South Point +, + +33.8950 +, +- 120.1159 + +, alt. + +183 m + +, + +on sandstone growing with + +A. socialis + + +, + +14 June 2009 + +, +K. Knudsen +11422 ( +SBBG +) + +; • + +San Luis Obispo Co. +, +Carrizo Plain National Monument +, +canyon south of Hurricane Road +, +but near road, Elkhorn Hill +, +north-facing slope +, + +35.2074 +, +- 119.7026 + +, + +838 m + +, +on siliceous rock +, + +28 March 2016 + +, +R. Rosentreter +19464 ( +SBBG +) + +. + + + + +Notes. + + +In our key to southwestern North America + +Acarosporaceae ( +Knudsen et al. 2023 a +) + + +Acarospora tejonensis + +is recovered in Section 8 couplet 12, areoles with an average hymenium height of 120 μm in couplet 13 with + +Myriospora hassei + +and + +Acarospora worthingtoniana + +. + +Acarospora tejonensis + +differs from + +M. hassei + +in not having an interrupted algal layer or a hymenium up to 200 μm high. It differs from + +A. worthingtoniana + +in having a thicker cortex [30–50 (– 70) vs. ca. 20 μm], a narrower parathecium indistinct to 20 μm vs. 40–100 μm wide, and in not having abundant apothecia in each areole. + + +Because + +Acarospora tejonensis + +usually has one apothecium per small areole without producing secondary metabolites, it belongs to the morphological + +A. veronensis + +group. It may be in +California +collections misidentified as + +A. veronensis + +if the hymenium and cortex is not measured or as + +A. americana + +if the parathecium is not measured. + +Acarospora tejonensis + +differs from + +A. veronensis + +especially in the having a higher hymenium (100–150 vs. 60–100 µm) and thicker cortex [30–50 (– 70) vs. 15–30 μm]. + +Acarospora tejonensis + +differs from + +A. americana + +in having a narrower parathecium ( +Knudsen 2021 +). The two species are sympatric in +California +. + +Acarospora tenebrica + +has similar anatomical measurement as + +A. tejonensis + +except apices of the parathecial hypae widen up to 3 μm. + +Acarospora tenebrica + +occurs in southwestern +Texas +and +New Mexico +while + +A. tejonensis + +is known only from central +California +. +Magnusson (1956) +reported the North African species + +Acarospora obscura + +as occurring in +California +. “ Whether the identity between the American and the African specimens is complete is not easy to state owing to the smallness of areoles ” ( +Magnusson 1929 +). We examined an +isotype +of + +A. obscura + +from H. + +Acarospora obscura + +has flat smooth brownish-black areoles less than +0.5 mm +wide, cortex less than 30 µm thick, broadly attached with a black underside, punctiform immersed apothecia +0.1–0.3 mm +wide, parathecium indistinct to 15 µm wide, with a low hymenium less than 100 µm. We have seen no specimens of + +A. obscura + +from +California +. + +Acarospora tejonensis + +can have small dark brownish-black areoles like + +A. obscura + +but differs in the thicker cortex 30–50 (– 70) µm, a thickening mycelial base, a higher hymenium usually 120 µm tall. The specimen of + +A. tejonensis + +from Santa Rosa Island has areoles both small and all black. It is probable Magnusson identified a small blackish specimen of + +A. tejonensis + +as + +A. obscura + +. + + + + \ No newline at end of file