A CONSPECTUS OF THE LICHEN GENUS STEREOCAULON ...

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234 Journ. Hattori Bot. Lab. No. 43 1977 leg. A. H. MAGNUSSON, 1924 (no. 8379) (UPS-MAGN, lectotypus, lectotypif. nov.). The other specimens cited in the protologue are different, belonging to St. botryosum f. congestum (MAGN.) FREY and St. rivulorum MAGN. Exsicc.: MALME, Lich. Suec. Exs. Fasc. XL (1926) no. 979B, as St. fastigiatum var. dissolutum (LD, s, WIS). Icon.: FREY 1932, PI. I, fig. 7, as St. botryosum f. dissolutum. Remarks: widely distributed and much more common than the typical species, from which it differs in the lack of apical spathulate expansions, the soredia being effusely spread over the pseudopodetial apices. It has a considerable resemblance to the Antarctic species St. antarcticum VAIN. Fo. globuliferum (MAGN.) LAMB ex POELT, Be~timrnung~~chlii~~el Europaischer Flechten: 635 (1969). - Stereocaulon fastigiatum f. globuliferum MAGN. Goteborgs K. Vetensk.- o. Vitterh.-Samh. Handl. ser. 4,30 (7): 37 (1926). - Stereocaulon botryosum f. globuliferum (MAGN.) FREY, Rabenhorsts Krypt.-F1.9, Abt. IV, 1. Halfte: 125 (1932). Typus: Sweden, Lycksele Lappmark, par. Tarna, Bjorkfors, Syterbacken, altit. 450 m s. m., on rock, leg. A. H. MAGNUSSON, 1924 (no. 8236) (UPS-MAGN, holotypus). Remarks: apical soredia concentrated in & well-defined subglobose masses. Rare; known only from the type and one specimen seen from Alaska. Fo. pygmaeum (MAGN.) LAMB (n. comb.)as Basionym: Stereocaulon botryosum f. pygmaeum MAGN. Ark. Bot. 33A (1): 91 (1946). Typus: Sweden, Lycksele Lappmark, par. Tarna, Brakkfjallet, altit. 600 m s. m., on irrigated rock, leg. A. H. MAGNUSSON, 1924 (no. 8084) (UPS-MAGN, holotypus). Remarks: like a stunted, partly prostrate state of f. dissolutum with granular soredia effusely concrescent into a dense crust. Known only from the type specimen and two specimens seen from U.S.A. (Washington and Oregon). 32. Stereocaulon sterile (SAV.) LAMB ex KROG, Norsk Polarinst. Skr. no. 144: 89 (1968); Occas. Papers Farlow Herb. Crypt. Bot. no. 2: 1 (1972); ibid. no. 5: 1 (1973). - Stereocaulon evolutum f. sterile SAV. Bot. Materialy, Notul. System. ex Inst. Cryptog. Hort. Bot. Petropol. 2 (11): 165 (1923). Typus: U. S. S. R., Kamtchatka, Truby Volcano near Sel'devaya Bucht, leg. V. P. SAVICZ, 1908 (no. 2263) (LE, lectotypus; lectotypified by LAMB, 1973). Icon.: LAMB 1973, figs. 2a, b, c, 3,4, 5, 6,7a, b. Mat. chim. : atranorin and lobaric acid. Distrib. : northern amphipacific: U. S. S. R. (Kamtchatka), Canada (British Columbia), U. S. A. (Alaska, Washington, Oregon, California). Remarks: morphologically resembling St. subcoralloides (NYL.) NYL., St. sibiricum LAMB, St. tennesseense MAGN., and in certain states also St. evolutum GRAEWE, to which latter however it is not closely related. 33. Stereocaulon subcoralloides (NYL.) NYL. Flora, 57: 6, footnote (1874); MAGN. Goteborgs K. Vetensk.- o. Vitterh.-Samh. Handl. ser. 4, 30 (7): -- 26 This combination made in HUNECK, Phytochemistry, 11 : 1494 (1972), but there invalid (basionym reference not given).
I. MACKENZIE LAMB: A Conspectus of Stereocaulon 235 28 (1926); FREY, Rabenhorsts Krypt.-F1.9, Abt. IV, I. Halfte: 200 (1932); DAHL et KROG, Macrolichens of Denmark, Finland, Norway and Sweden: 136 (I 973). - Stereocaulonpaschale f. subcoralloides NYL. Lichenes Scandinaviae : 64 (1 861). Typus: no type specimen designated ("id inscripsi in Mus. Fenn."). No specimen labelled by NYLANDER as St. paschale f. subcoralloides could be found by us in H (Finnish lichen herbarium and general lichen herbarium) or H-NYL. Therefore it is necessary to select a neotype, and for this we have chosen a specimen in H-NYL (no. 39994) from Finland, Korpilahti, leg. E. LANC (VAINIO) in 1874, labelled by NYLANDER Stereocaulon subcoralloides (neotypif. nov.). Exsicc.: Krypf. Exs. Vindob. Cent. XXI (1913) no. 2066 (FH, PR, S, WELC). - Lichenotheca Fenn. Fasc. XXV (1949) no. 618 (UPS-MACN)?~ - NORRL. et NYL. Herb. Lich. Fenn. Fasc. I1 (1875) no. 85, as St. coralloides (FH-TUCK). - RAS. Lich. Fenn. Exs. Fasc. I1 (1935) no. 56 (ups). Icon. : DAHL et KROC 1973, fig. 45. Mat. chim.: atranorin and lobaric acid (cfr. DUVIGNEAUD, 1942 and HUNECK, 1974). Disfrib. : boreal circumpolar. Sweden, Norway, Finland, U. S. S. R. (Karelia ladogensis, Kola Peninsula, Krasnoyarsk Territ., W. Siberia, Transbaikalia, Kamtchatka), Canada (Ontario, QuBbec, Nova Scotia, Newfoundland), U. S. A. (New York, Maine, Alaska). Erroneous records: England (MACNUSSON, 1926), Scotland (WATSON, 1942). The specimen from England mentioned by MACNUS- SON (in EM, annotated by him as St. subcoralloides) is a small state of St. dactylophyllum FL~RKE. The Scottish record of WATSON is based on a specimen of St. subdenudafurn HAV. (FH, commun. U. DUNCAN). Remarks: closely related to St. sibiricum LAMB, less closely to St. tennesseense MAGN. Rarely fertile. St. coralloides ,B. conglomeratum TH. FR. is given as a synonym of this species by MAGNUSSON (1926) and ZAHLBRUCKNER (1926-27). However, TH. FRIES (1857, p. 17) ascribes the epithet to E. FRIES, who had described it as St. paschale P. conglomeratum, which is a nomen confusum (see p. 329). VAINIO (1940, p. 10) made the combination Stereocaulon conglomeratum ("TH. FR.") VAIN. Both he and TH. FRIES used the epithet in the sense of the present species, to which however it is inapplicable. Fo. sorediascens LAMB (n. f.) Diagn.: Phyllocladia passim soredioso-dissoluta, sorediis pulvinatis, albidis, farinosis, 0.5-1.5 mm latis, plus minusve confluentibus. Typus: U. S. S. R., Karelia ladogensis, Kurkijoki, Kuupala, Jaavuori, leg. V. RASANEN, 1931 (CAN, holotypus). Remarks: known only from the type specimen (sterile). 34. Stereocaulon supervestiens MAGN. ex MAGN. et ZAHLBR. Ark. Bot. 31A (6): 37 (1944). Typus: U. S. A., Hawaii, Oahu, Waianae Range, Kealea trail, leg. CRANWELL, SELLING and SKOT- TSBERC, 1938 (no. 5640) (s, holotypus; CB, isotypus). Zcon.: MAGN. et ZAHLBR. 1945, P1. VII, fig. 2. Mat. chim. : atranorin and lobaric acid. Distrib. : Hawaiian Islands. Remarks: a somewhat unclear species of doubtful taxonomic position, known only from 4 collections. As it has some similarities to St. octomerellum MULL. ARG., it may actually belong to sect. Denudata, subsect. Botryoideum. The extensive and persistent primary thallus, with numerous dark cephalodia, somewhat resembles that of St. condensaturn H<strong>OF</strong>FM., but the phyllocladia of which it is composed are smaller, regularly grain-like and equal-sized, not 27 Lichenotheca Fenn. no. 1230, as St. subcoralloides, is St. paschale (L.) H<strong>OF</strong>FM. (FH).
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offenen See" (H-RAs, holotypus). I.
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-- f. confluens (MAGN.) FREY 216 --
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-fragile (L.) HOFFM. 327 - fronduli
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-- var. sorediiferum NYL. 226, 312
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- turgescens Nn. 252 - tyroliense (
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