A CONSPECTUS OF THE LICHEN GENUS STEREOCAULON ...
A CONSPECTUS OF THE LICHEN GENUS STEREOCAULON ...
A CONSPECTUS OF THE LICHEN GENUS STEREOCAULON ...
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I. MACKENZIE LAMB: A Conspectus of Stereocaulon 275<br />
lished protologue. There is a specimen of St. montagneanum in L from Java, without name<br />
of collector, stated to be from the herbaria of BUSE and SPRENGEL, named "Stereocaulon<br />
ramulosum" and "Stereocaulon coralligerum Meyer". The available evidence points to the<br />
probability of St. coralligerum MEYER having been based on an Indonesian specimen of St.<br />
montagneanum, but because the protologue cites only specimens from Chile and Brazil, the<br />
typification of the epithet in the sense of the present species is not nomenclaturally possible.<br />
89. Stereocaulon paradoxum LAMB (n. sp.)<br />
Diagn.: Pseudopodetia (inter muscos et hepaticas crescentia) plus minusve decumbentia<br />
aut prostrata, substrato laxe vel vix affixa et partibus infimis ut videtur emorientia; longit.<br />
24 cm, crassit. 0.64.8 (-1.0) mm, teretia, subsimplicia vel parce irregulariter ramosa, varie<br />
flexuosa intricataque, pr. maj. p. bene tomentosa (tomento coacto-spongioso, pallido, ut in<br />
St. myriocarpo). Soredia desunt. Phyllocladia nurnerosa, aggregata, digitata aut cylindricocoralloidea,<br />
bene ramosa, parva exiliaque, longit. 0.5-1.5 mm, crassit. 0.10-0.25 mm, albida,<br />
pseudopodetia aequaliter vestientia et in eorum apicibus minute papillata sed mox digitatoelongantia.<br />
Cephalodia pseudopodetiis lateraliter insidentia, intus solida (protosacculata),<br />
laeviuscule subglobosa, pallide rufofuscescentia, parva (0.54.8 rnm lata), nec pedicellata nec<br />
scrobiculata, sed majora interdum fissurantia et tandem verrucoso-divisa; structura corticalis<br />
gelatinoso-pseudoparencymatica. (Apothecia et pycnidia adhuc ignota.) Atranorinum et<br />
acidum lobaricum continet (K+flavescens, PD+pallide flavescens). -Prim0 intuitu St.<br />
myriocarpum TH. FR. simulans, sed cephalodiis protosacculatis mox distinguendum.<br />
Typus: India, Uttar Pradesh, Charnoli Distr., between Waan and Bhuna, altit. 3500 m s. m., on<br />
soil over rock among mosses and foliose hepatics, leg. A. SINGH, 1967 (no. 91599) (FH, holotypus;<br />
LWG, ~SO~YPUS).<br />
Mat. chim.: atranorin, lobaric acid, and trace of an unidentified substance.<br />
Distrib.: Himalayan region. Known only from the type specimen.<br />
Remarks: This rather strange new species with protosacculate cephalodia superficially<br />
resembles St, myriocarpum TH. FR. in habitus, form of phyllocladia and tomentosity of<br />
pseudopodetia. As apothecia are not known, its placing in Subsect. Holostelidium can only<br />
be tentative. The cephalodia contain Nostocoid algae; their cortex is 20-45 p thick, pale<br />
sordid yellowish but not nubilated, of pseudoparenchymatous structure with isodiametric,<br />
thick-walled cells; lumina rounded, 34 p diam., the walls gelatinously confluent and 2-3 p<br />
thick. There is no indication of any palisadic structure.<br />
90. Stereocaulon piluliferum TH. FR.<br />
De Stereoc. et Pilophor. Comment.: 21 (1857); Monogr. Stereoc. et Pilophor.: 337 (sep. 33) (1858);<br />
DODGE, Ann. Cryptog. Exot. 2 (2): 134 (1929).<br />
Typus: Nepal, exact locality not given, leg. WALLICH (date ?) (UPS-TH FR, holotypus; c, FH-TAYL,<br />
isotypes).<br />
Fac~ltative synonyms: Stereocaulon sinense HUE, Nouv. Arch. Mus. Hist. Nat. ser. 3, 10: 251 (sep.<br />
39) (1898). - Stereocaulon piluliferum var. sinense (HUE) LAMB ex ASAH. in KIHARA, Fauna & Flora of<br />
Nepal Himalaya, 1952-53, 1: 50 (1955) (comb. inval.).<br />
Exsicc.: KUROK. Lich. Rarior. et Crit. Exs. Fax. I11 (1971) no. 144 (FH, LD). - Lich. EXS. Univ.<br />
Colorado Mus. Fasc. IV (1966) no. 150, as St. '>iliferumM (LD). - V~ZDA, Lich. Sel. Exs. Fax. XLI<br />
(1971) no. 1016 (FH).<br />
Icon.: TH. FR. 1858, PI. VIII, fig. 3. -HUE 1898-1901 (1899), PI. 111, fig. 4, as St. sinense.<br />
Mat. chim. : atranorin, stictic acid, norstictic acid; in one specimen from India, Darjeeling