Grimmia pseudo-anodon Deguchi, previously known only from Peru, is reported as new to Bolivia. The specimens are from packets labelled as Coscinodon trinervis, collected by Herzog in 1911. Grimmia pseudo-anodon is distinct by its non-plicate leaves and straight, centrally attached seta. This is a range extension of some 300 km and an elevational increase of about 1000 m

Hastings, Ross I.

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137Tropical Bryology 13: 137-140, 1997Grimmia pseudo-anodon new to BoliviaRoss I. HastingsProvincial Museum of Alberta, 12845-102 Avenue, Edmonton, Alberta, Canada T5N 0M6Abstract. Grimmia pseudo-anodon Deguchi, previously known only from Peru, is reported as new toBolivia. The specimens are from packets labelled as Coscinodon trinervis, collected by Herzog in 1911.Grimmia pseudo-anodon is distinct by its non-plicate leaves and straight, centrally attached seta. Thisis a range extension of some 300 km and an elevational increase of about 1000 m.In 1987, Deguchi described a new species, Grim-mia pseudo-anodon, that he reported as endemicto Peru. Specimens examined by Deguchi camefrom the provinces of Arequipa and Puno. Whileexamining specimens of Coscinodon for a revi-sion of that genus in South America, I came acrosstwo collections of G. pseudo-anodon from theprovince of Cochobamba, Bolivia. Specimens inboth packets had been identified as Coscinodontrinervis (Williams) Broth.Both collections were made by Herzog in 1911 andnumbered as 2970 and 2972. I have found that nospecimen in either packetof these collections is C.trinervis but rather are two other species, G.pseudo-anodon and Coscinodon pseudocribro-sus Hastings. The latter species I described as new(Hastings, 1996).The three species, C. trinervis, C. pseudocribro-sus and G. pseudo-anodon, while all havingimmersed capsules are identifiable by a combina-tion of character states (Figs. 1-9). Coscinodontrinervis has plicate leaves, an arcuate or coiledseta with a ventricose attachment to the capsule,is gymnostomous, and has a small mitrate, smoothcalyptra. Coscinodon pseudocribrosus also hasplicate leaves, but the seta is short, straight, andcentrally attached to the capsule. It has a peristo-me and a large, plicate calyptra. Both species ofCoscinodon are dioicous, typical of the genus.The leaves of Grimmia pseudo-anodon are notplicate and the seta is short, straight, and centrallyattached to the capsule. Like Grimmia anodonBruch & Schimp., it is gymnostomous, has a small,mitrate, smooth calyptra and is autoicous.The discovery of G. pseudo-anodon in thesepackets extends the known range of that speciesby over 300 km to the SE (Fig. 10). Deguchi (1987)cited an elevation range of 3900 to 4000 m andreported that one specimen was collected on arocky meadow. The type locality habitat was notreported. The specimens from Bolivia were138Figures 1-3. Coscinodon trinervis. Williams 2814 (NY). Figure 1. Calyptra. Figure 2. Capsule and seta.Figure 3. Stem leaf. Figures 4-6. Coscinodon pseudocribrosus. Herzog 2970 (L). Figure 4. Calyptra.Figure 5. Capsule and seta. Figure 6. Stem leaf. Figures 7-9. Grimmia pseudo-anodon. Herzog 2970 (BM).Figure 7. Calyptra. Figure 8. Capsule and seta. Figure 9. Stem leaf.139Figure 10. The known world distribution of Grimmia pseudo-anodon Deguchi.140collected at a much higher elevation, 4900 m, andHerzog’s habitat description is simply “Felsen-meere.” It would appear that the site from Boliviais considerably higher and drier than those fromPeru.Specimens examinedGrimmia pseudo-anodonBOLIVIA. COCHOBAMBA. Huaillattanisee, 17o04’S, 66o 32’W, 4900 m, Herzog 2970 (BM, S). AmAbfluss des Altaranigletschers, ca. 4900 m, Herzog2972 (L).Coscinodon pseudocribrosusBOLIVIA. COCHOBAMBA. Huaillattanisee, 17o04’S, 66o 32’W, 4900 m, Herzog 2970 (F, L, S). AmAbfluss des Altaranigletschers, ca. 4900 m, Herzog2972 (S).AcknowledgmentsI am grateful to the curators of BM, F, L, NY, and S forthe loan of specimens. Dale H. Vitt kindly reviewed anearly version of the manuscript. I particularly thankMichael Luchanski (PMAE) who provided the line drawingsof all the specimens.Literature CitedDeguchi, H. 1987. Studies on some Peruvian species ofthe Grimmiaceae (Musci, Bryophyta), pp 19-74. In H.Inoue (ed.) Studies on cryptogams in southern Peru. TokaiUniversity Press, Tokyo.Hastings, R.I. 1996. The genus Coscinodon (Bryopsida,Grimmiaceae) in South America, including a new species.The Bryologist. 99:418-427.

Grimmia pseudo-anodon new to Bolivia

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