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168 Graphis Scripta 2: 168-170, 1989. A new species of Caloplaca (section Gasparrinia) from California, with notes on some other American Caloplaca William A. Weber, Prof. Emeritus University of Colorado Museum Boulder. CO 80309, USA Caloplaca bra1iae W. A, Weber, a maritime saxicolous species in Section Gasparrinia, is described frbm Santa Cruz lsland, Santa Barbara County, California. The genus Catoplaca has been a special interest of Ove Almborn for many years. His work with the maiine licheni of Halland's Vliderd inspired my first visit to that area, where I became acquainted with the remarkable zonation of the lichen flora, including several species of Caloplaca. It is a pleasure for me to describe a distinctive endemic maritime species in this volume dedicated to him. Catoplaca (*ct. Gasparrinia) brattiae, sP' nov. Thattus epilithicus, plagas rotundas vet rotundatas radiatim crescentes, in centro primum verruculoso-areoiatus et ap;th;cia crebra et approximata gerens' usque ad 2l ryn lat?s formans, dispersas vel hinc inde confluentes, flavus, fere opacus, KHO purpureus: lobi thalli prostrati, subcylindrici, paulum subtorulose inaequales, tenues,O.5-1.0 mm lati et plus minus 0.5-3'0 mm longi' nriitd, hciniis dictrotome vel subdichotome divisis, ad apicem rotundatis,. sorediis et isidiis aestitutii, subtus albidis; areolae centrales butliformes; stratum corticale non distincte cellulosum, medulla alba, ex hyphis longitudinalibus conglutinatis formatum. Apotiecia iicanorini, et iD centro thallo, et in lobis marginalibus superficialia, alte sessilia, rOtunda, parra, osque ad I mm lata; discus flavus, Opacus, KHO purpureus, epruinOsus, e concavo subplanui; marg thallinccrassiusculus, integer, interdum pustulatus (sorediaincipieutes?), penistenter Ue"'e proniiaulis, thallo coDcolor; hymeniuh 40-50 r,pr/ altum; sporae decolores, angusti-ellipsoideae, iectai, polari-di6Ustae, luminibus'ca. l/3 longitudinis sporarum metientibus, isthmo tenui junctis, lo-l I mr, longae et 3-4 mp latae. Pycnoconidia non visa. Tha[us epitithic, growing radiately in round or roundish plaques, verru.ulose-areolate in the center, up to 2j mm broad, separatc oi confluent, yellow, nearly opaque, KOH+ purple, with crowdid or adjacent apothecia; thallus lobes prostrate, subcylindric, subtorulose, unequal, 0.5- 1.0 mm wide and 0.5-3.0 mmlong beyond the first areotae, dichotomous or subdichotomous, rounded at the apGs, white ventrally, s-oredia or isidia lacking; central_ areoles bulliform, the cortical stratum not distinctly cellular, medulla white, of conglutinated longitudinal hyphae. Apothecia lecanorine, superficial on the central areoles and marginal lobes, sessile, round, small, up to I mm wide; disc yellow, opaque, KOH+ purple, epruinose,. a,lmost plane to concave; ifrattiire'margin thickish, cntiie, occasionally pustulate (incipienr soredia?),-persistent and quite prominent, cincolorous with the thallus; hymenium 40-50 mp high; spores l0-ll-mp x 3-4 mp, iyalio", narrow-eltipsoid, straighr, polaiildcular, each lumen ca. l/3 the length of the spore, the isthmus narrow. Pycnoconidia not seen, Hototype: California, U.S.A, Santa Barbara County. Channel Islands, Santa_Cruz Island. West end of tf,L ishnd, on rop of the rocky headland just above the spray zone, ca. 50-100 msm., an at;ost pure stand dominatin! the level oigently sloping area; o99u11ing Yith Caloplaca rosei Hasse anaiooieti.es overgrown w,lth Xanthoriaianditaria. 8 Jan. 1986, W. A.lleber &Charis Bratt, Lich- Exsicc. COLO No.660 (COLO). Other collections: California. San Luis Obispo County. On exposed boulders along the ocean at Morro Rock Reserve. I June 1987, R. E. Rielner 87-209 (COLO). The most recent treatment of the genus Caloplaca for western North America is an unpublished bul1ogeth€less extremely useful key (McCune l9E9). McCune lists the-followinS-taxa of yellow, saxicolous, effigurate-lobate, mariti'me Gasparrinie Caloplaca verruculilera (Yainio) Zsilbr., C. thaltincota (We?de[) DuRietz, C. scopularis (Nyl.) Lettau, nd Q. ryalna (Wecldell) Zahtbr. C. grotulosa (Mue[.-Aig.) tata, while no! clearly mentioned as such ia the key, is a nonmaritime species.
I ov , , . Qaloplaca brattiae belongs to this maritime series. According to the key provided by Nordin (1972),C.brattiaewouldfallclosest_toC. wrruculifera,whichisdistinguished-fiomallottrerspeciei !Y havin8 isjdia-like $,arts (probably better referred to as papiltae). Like C. brattiae. it is rosettefgrqtjgq_and clear yellow, end ecologicatly it is ornithocoprophilous, calciphobe, ani marlni, Uut the "isidia-like warts' are very small, numerous, and crowded.- They irise tin tne iurfu"e of normal convex'areoles'. I use the term areoles very loosely to mean simpiy the parts of the older thallus lobes which are cut off ftqp {t_a marginal ones, TLey are not autonomous areoles in the sense oi m-any crustose lichens. 'Isidia-like warts'are lacking iri C. brattiae. Instead, the individual segments of the internal thallus themselv-es are highly convei and even somewhat iirnriti"tea U"ro*,just.i are thos-e of C. uerruculifera before being overgrown by papillae. Nevertheleis, theie euiAeirifv iJ close relationship between the two species. Two features noted.on the type coltection may or may not be of taxonomic importance, The thalline margin of the apothecia commonly develop -pustulei wtrictr appiai i" ui trtii and possibly incipiently sorediate. Also, the lowermost margins oi the marginal lobei often rraue -aiatirig-;lrii6 spicules which resemble minute rhizines but ttrly may, in faci, u. "rtiusion, oi r"tii.yrt"tr. Among the esorediate.species of section Gasparrinia, C. brauiae very closely resembles the - European C. thallincola (weddelD Du Rietz, but in rhit speciei the thallus is diitincitytrange, ttricter and with broader tobes, and the. spores are lemon-shaped' (in sygdi+, ,'c!ri"iirir"iil septum. utri;r;i;i;; Ecologically, c. lhallinco-la is characteristic, in Scandinavii, or irt" io*"ijeotinorine-beii or verrucaria maura facies (Almborn 1955), whire c. trauii b;tk;i;';;il;;; georittorine aerohaline belt-.Caloplaca sco-pularis lacks tle narrow, highly conue* ilargioaito-ffs-of mentioned the aborre- species. It is a truly marine species with a narrow vertical (from distribution on coastal 1.5-4.0 rocks m above sea levil (Nordin; r.c.). The coastal California.lichen flora is.highly endemic, but it must atways be borne in mind that thele are close relationships betwee! ttris frori ana tnat or trre ioiCicoaiiJin-orttrern chile (Zahlbruckner.l924' 1925). paloptaca orthocladazantvr. (c. tiilii-i"'liruil Ju"tJ,i.ly is a close relative occurring in similar sites on the chitean and peruviad coass. it i, i-niti'"tlii*J by unusualy etonsated marginal robes. An isidiate species, c. isidiia(vlinjzatib;.-(e'iiiiiti, zahrbr.) is also known fr-o_m c-hile, B-rasil, and Galipagos. A more brbadry itru.tur"a* .Jnfi*pi;i. study than was attempted bv Nordin is much ngqged, because of the probaLte occurh* "i-,iiJllttiunitloni. Furthermore, because the subtle differjnces betwein t-he species har" p;;;;;;; adequate description, difficutt of a special attempt must be made to quantify th;;.- '- - Arthough c- brattiae,is a_very yelrow species at the typ€ locality, I would not emphasize differences in thatlus color. since I betieve-th"t.nJ"iiylogly site probably inhibits the development of an intense parietin coloration (see also Nordi;, ,.c.;1 ti:Tne thictness 6r trre coitei"rro produces differences in the intensity of color, as aiscusse'O bet-ow-l' c' brattia4 exhibits what might te considered incipient soredia. This phenomenon can best be noted on the-margins of the apotiecia, where a patei citor ana "i*uuine "'r;riio-i.orn a smal pustule. In section, this is seer.ro be a srightry rupiured jart of ttre cortex.'silir;; ;; spots with small nrpture-s. may be seen on the.tips of ttre.tiraltus lobisi but soredia have not been observed. I do not believe this phenomenonnas.been described in any olne. ip""i* oirirfd*iirrlri" thus far, but I would hesitate to consider it of taxonomic signiricance r"itrroui icreinin;;;h across the group. A firm-like prothallus-has.not been observed to develop in c, brauiae. However, on rocks '-'.-r9rgl of sea-salt. sprav at pichidangui, chii;, fcoiL;;ea rnateriaf ;{e'.-;;;;r;;i (coto z- 64241) in which a broad band of thislrothalluisurrounoea the thallus and in some instances the prothallus almost totally replaced the lobate thallus as if by some sort of.ttrition. On the California coast' the crustose c- rosei Hasse typicarty has a ye[ow fih-rike protrr"Gl. --' --' "' REFERENCES Almborn, ove. 1955- Lawegetation och lavflora pA Hallands ylider6. K. Vetensk. Akad. Avh. Naturskydd. )l:t-92. I2 plates. Mccune' Bruce- 1989. The genus caropraca in western North America. 19 pp. privatery printed. Nordin, Ingvar. 1972. caroplaca, sect. Gasparrinia i Nordeurope taxonomiska och ekologiska studier. Skriv Service AB, Uppsala.
Page 1 and 2: I, hh rje, r b Vo[- z rrn, y oktolr
Page 3 and 4: OveAlmbornTS6r ove och jag triiffad
Page 5 and 6: 125 Graphis Scripta 22125-127, 1989
Page 7 and 8: 127 previously reported). It was la
Page 9 and 10: 129 chromatography (fLC; Culberson
Page 11 and 12: . 1__--1 I I t \ t f 0 ( t oo qa tt
Page 13 and 14: 133 Huovinen, K., Ahti, T. 6. stenr
Page 15 and 16: Betriiffande avgrd.nsningsproblem h
Page 17 and 18: 137 Mycket talar emellertid ftir at
Page 19 and 20: 139 alpina. Bresinsky & Stangl (197
Page 21 and 22: 141 hopefully stabilized the nomenc
Page 23 and 24: Literature 143 Acharius, E. 1810: L
Page 25 and 26: 145 and threatened by modern forest
Page 27 and 28: 147 bryophytes. Sorkapp Land. rare.
Page 29 and 30: 149 The lichen flora on the peak of
Page 31 and 32: 151 are presented in Table 3 and 4.
Page 33 and 34: L. insularis L. lapicida L. orosthe
Page 35 and 36: Beferences 155 Arup, U. & Ekman, S.
Page 37 and 38: 157 snabbt och var Ig48 uppe i unge
Page 39 and 40: afien ej {terfunnen nyfynd Figur 4.
Page 41 and 42: Graphis ScriPta 2: 161, 1989. 161 G
Page 43 and 44: n.11610, pe Fraxinus excelsior. Vii
Page 45 and 46: 165 Museum j-n Giiteborg (Naturhist
Page 47: 167 Lamb, I. M- 1977 z A' conspectu
Page 51 and 52: 171 The species is for the present
Page 53 and 54: 173 forest which appeared to the ve
Page 55 and 56: Graphis Scripta 2: 175, 1 989 175 C

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