Lichens from Mount Kinabalu
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281 Tropical Bryology 8: 281-314, 1993 Lichens from Mount Kinabalu J.J.M. Sipman Botanischer Garten und Museum, Königin-Luise-Str. 6-8, 14115 Berlin, Germany Abstract: 286 species of lichenized fungi on Mount Kinabalu are recorded by field survey and investigation of literature records and herbarium material. An annotated catalogue is presented, together with habitat notes, and a list of collectors. The summit area has a saxicolous lichen flora of boreal affinities, while the lower zones are more closely related to other SE Asian mountains. Eleven species appear to be restricted to the mountain, and four new species are described: Phaeographis kinabalensis, Stereocaulon granulans, Pertusaria epitheciifera and Thelotrema subweberi. 1. Introduction 1965, 1967, Beaman & Beaman 1993). Among Mount Kinabalu is in many respects a the cryptogams, bryophytes have received remarkable site for plant life. It rises up to more considerable attention (Menzel 1988 and than 4000 meters from large stretches of lowland successive papers of this series, 1988a). Lichens and low mountains, so that its higher parts are have been collected from the beginning of the very strongly isolated from areas with a similar exploration on, but mostly in an incidental and climate. Geologically it is a very young and fast- unrepresentative way. An important exception rising mountain, and its plant life seems to have is Mason E. Hale, who visited the mountain in had little time to adapt to high altitude conditions. August of 1968 and collected over one thousand Also its bedrock sets it apart. Its central part is specimens, especially Parmeliaceae and composed of granite, surrounded by a ring of Graphidales. About 40 lichen taxa were reported ultrabasic rock, both rock types being absent in the literature until 1993. from surrounding areas. All this makes it a very The biological importance of the moun- interesting object for a study of the diversity of tain is fortunately appreciated by the local its biota, and it has already attracted much authorities, who created a National Park to attention from biologists. Information about its protect it, Kinabalu Park. This includes all higher plant life is found in numerous papers (e.g. parts and much of the foothills. It is situated in Gibbs 1914, Luping et al. 1978, van Steenis Malaysia, State of Sabah, on the boundary of the 282 districts Kota Belud and Ranau. Its elevation had little time to develop new taxa, is explained ranges between c. 700 and 4100 m, and its by assuming that they were received from ancient coordinates are c. 06° 05' N, 116° 35’E. Maps of nearby mountains which have since been eroded the mountain showing the geographical away (van Steenis 1967). indications used below were published by Menzel The purpose of the present study is to (1988: 283, 295). offer a preliminary survey of the lichen flora of The natural vegetation of the mountain the mountain, its altitudinal zonation, geogra- can be divided very roughly into four zones. On phical relations and other peculiarities. the lower slopes of the mountain, below c. 1500 m, the original vegetation is probably high forest. Most of this has long since disappeared and is 2. Material and methods replaced by cultivated fields and secondary vegetation (cf. Gibbs 1914). At c. 1500-2500 m This study is largely based on specimens montane forest occurs, which becomes collected during a one-week visit by the author increasingly rich in bryophytes with increase in in May 1989 together with Dr. B. C. Tan altitude. Both zones are also present on surroun- (Cambridge, USA). A full set is deposited in the ding mountains, so that their flora is not isolated, herbarium of the headquarters of.Kinabalu Park, in contrast with the following zones. From c. P.O. Box 10626, 88806 Kota Kinabalu, Sabah, 2500-3000 m the subsoil consists mainly of Malaysia [SNP], and an almost complete set in ultrabasic rock, which bears a stunted forest. Berlin [B]. A preliminary report of this trip was The lower half of this zone has extensive moss given in the Flora Malesiana Bulletin (Sipman & growth, upwards lichens become more abundant. Tan 1990). At c. 3000-4000 m, where the bedrock is granite, Another important source is the material the vegetation consists of stunted forest on collected by Mason E. Hale in August 1968 and gravelly soil and low shrubs in rock fissures. The kept in Washington [US]. It was examined by the summit plateau, above 4000 m, is almost bare. author during a visit in December 1991. Not all Here only a few dwarfed vascular plants occur in material collected by Hale was available at that fissures, and also only a few cryptogams. The time, many genera being on loan. scarcity of plant life is probably due to the I have added all information found in the extreme climatic conditions and to strong erosion. literature, and a few specimens that were Cf. Gibbs (1914), who noted "no lichens or encountered incidentally in herbaria, mainly in mosses on the rain- and wind-swept rock, the B and BM. smooth surface of which prevents the formation The specimens cited below were all of crannies or ledges, and opposes the consequent examined by the author unless otherwise stated, accumulation of detritus” and ...”where erosion excepting the Parmeliaceae and Thelotremata- is too rapid for the establishment of any ceae in US, which were identified by Hale. For permanent botanical factors”. the examination the usual microscopic techniques Van Steenis (1965) discussed the phyto- were used, including staining of asci or spores geographical relations of Mount Kinabalu. He with lugol solution. Part of the material was concluded that the lowland flora is similar to the examined chemically, by spot tests or TLC, as surroundings. The montane flora shows strong described in White & James (1985). For TLC similarities with Celebes and with other areas usually only solvent system A was used. with similar mountains, such as Malaya, the Consequently no reliable distinction between Philippines and New Guinea. The subtemperate protocetraric and fumarprotocetraric acid was taxa, found in the highest parts, form a unique made and the substance has been reported below feature of the mountain. They show relations to as (fumar)protocetraric acid. the mountains on the Asian mainland, and to the The available collections are not repre- Austral zone, but concern often endemic, derived sentative for the lichen flora of Mount Kinabalu, taxa. The presence of endemic taxa on such a because they all originate from the southside of young mountain, where evolution seems to have the mountain, along the available trails, especially 283 along the only trail leading to the summit, the (16); S 31321 [SNP] (18); Chew, Corner "Summit Trail" or "Tourist Trail", leading from & Stainton 2086 [BM] (det. Yoshimura, the Park Headquarters to Low’s Peak. More Aug. 1980); Chew, Corner & Stainton remote slopes are very difficult of access and 2006 [BM] (det. Yoshimura, Aug. 1980). cannot be reached during a short stay. No lichens TLC: (S 31064) trace atranorin, lobaric are at present known from there. Moreover, a acid; (S 31270, 31274) trace atranorin, considerable part of the available materials could lobaric acid, unkn. spot; (S 31276) trace not be identified with certainty because of poor atranorin, lobaric, fumarprotocetraric taxonomical knowledge and was omitted. This acids; (S 31321) trace atranorin, lobaric, amounts to about one third of the author’s fumarprotocetraric acids, unkn. spot. collections, especially members of the following Anzia semiteres (Mont. & v. d. Bosch) Stiz. - groups: Graphidaceae, Lecideaceae s.l., Epiphyte in tree crowns in mossy forest Pannariaceae, pyrenocarps, and the genera along Tourist trail, 2300 m. S 30942 (3); Dimerella, Menegazzia, Sticta and Usnea. Low [BM], Kina-Balu. (det. Yoshimura, Because of these restrictions the species list is Aug. 1980). TLC: (S 30942) trace atrano- certainly very incomplete, and includes probably rin, norlobaridone, trace fumarprotoce- less than 50% of the extant lichen taxa of Mount traric acid; (Low s.n.) norlobaridone, Kinabalu. loxodin, caperatic acid, fumarprotocetra- ric acid, atranorin, det. Yoshimura, Aug. 1980. 3. Catalogue of the lichen species known from Arctoparmelia separata (Th. Fr.) Hale - On Mount Kinabalu granite rock in the summit area, 4050 m. S 31143 (10). TLC! The specimen is tiny, A. Annotated enumeration with small lobes. An alphabetical list is presented of 286 Arthonia calamicola (Sydow) R. Sant. - On lichen species known with certainty from Mt. leaves in undergrowth of lowland forest Kinabalu. For all taxa the following details are near Poring and montane forest near Park given: 1) the name; 2) a short indication of the HQ, 700-1650 m. S 29427 (23); S 9505 observed habitat; 3) the altitudinal range; 4) the (27). collections and literature on which the record is Arthonia cyanea Müll. Arg. - On leaves in based; and 5) notes on the chemistry and other undergrowth of montane forest near Park remarks. The most frequent collectors are HQ, 1650 m. S 29428 (23). abbreviated: H = M. E. Hale, collections in US; Arthonia lividofusca Müll. Arg. - On leaves in S = H. Sipman & B. Tan, collections in B and undergrowth of montane forest near Park SNP, unless otherwise stated. The collection HQ, 1650 m. S 29429 (23). numbers of these collectors are followed by Arthonia lividula Vain. - On leaves in under- locality numbers in brackets. Explanations for growth of lowland forest near Poring, 700 these numbers are presented in section B below. m. S 29506 (27). Where TLC has been used to check the chemistry, Arthonia ramosii (Räs.) R. Sant. - On leaves in this is indicated by "TLC!", or the results are undergrowth of montane forest near Park given in detail. HQ, 1650-1900 m. S 30900 (1); S 29430 (23). Anzia gregoriana Müll.