Go to National Library of New Zealand Te Puna Mātauranga o Aotearoa
Volume 78, 1950
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(B) Rocks

(a) Lowland Rocks

True lithophytes are very rare on the granite rocks of the Pegasus region, but are rather more common on the schistose rocks on the summit of the Tin Range. Other than strictly coastal rocks, few low-altitude outcrops were observed. Macromitrium longirostre and Rhacomitrium crispulum were in fact the mosses most commonly observed by me on coastal rocks, though Lembophyllum clandestinum, Eriopus apiculata, and Zygodon menziesii were also found on sand-covered rocks in coastal stations. The Campbell Island moss Muelleriella crassifolium was obtained on rock at Wilson Bay and on the margin of a shallow rock pool on the flat between Crooked Reach and the Frazer Peaks, where, though my notes do not say so, it was doubtless attached to the granite rather than to the peat veneer. This is the second finding of this moss in New Zealand, Mr K. W. Allison having first obtained it at Akatore on the Otago Coast two years ago.

On the rocks forming the lip and margin of the Pegasus Creek Falls. Blindia tenuifolia, Andreaea subulata, and Sematophyllum tenuirostre grow in quantity as well as the following hepatics: Jamesoniella sonderi, Balantiopsis aequiloba, Hymenophytum leptopodum, Lepidozia praenitens var. minor, Pachyglossa sp., and Riccardia sp. At Lord's River Frullania deplanata, and on an island

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in Sawmillers' Arm Lophocolea novae-zelandiae were growing as lithophytes. Ditrichum brevirostrum grows on rocks at the terminus of the tramline on the Tin Range.

(b) Subalpine Rocks

On the summit rocks of the Tin Range, the following mosses were growing on a rock substratum: Andreaea acuminata (?), A. subulata, Blindia tenuifolia, Dicranoloma billardieri form integra (= D. pungentella), D. billardieri, D. integerrimum, D. sp., Dicranum trichopodum (?), Holomitrium perichaetiale, Leptostomum inclinans, Rhizogonium novae-hollandiae, Sematophyllum amoenum, and S. tenuirostre.

The hepatics gathered on these summit rocks were: Herberta alpina, Jamesoniella pseudo-occlusa, J. sonderi, Lepicolea ochroleuca, L. scolopendra, Lepidozia patentissima, L. pulcherrima, L. ulothrix, Metzgeria nitida, Plagiochila deltoidea, P. ramosissima, and Pycnolejeunea zotovii.

On granite rocks near Magog, one of the Frazer Peaks two species of Andreaea [A. rupestris (?) and A. acutifolia (?)] were the only lithophytes observed. Both, however, require further study.