This category covers species that grow on bare or thinly vegetated limestone and chalk rock, including scree, spoil and chalky soil. In Hampshire, such species are to be found on old abbeys and other monuments, in abandoned quarries, on road cuttings and on chalk stones brought to the surface on downland and under woodland. Some species occurring on trampled/disturbed paths on chalk are also included, but for a fuller list of these see Chalk and limestone grassland.
Cephaloziella baumgartneri (R)
Jungermannia atrovirens (R)
Leiocolea badensis (R)
Leiocolea turbinata 128
Lophozia perssonii (R)
Marchantia polymorpha subsp. ruderalis 258
Marchesinia mackaii 217 (X)
Pellia endiviifolia 237
Porella arboris-vitae (R)
Porella obtusata (X)
Porella platyphylla 206
Aloina aloides 472
Anomodon viticulosus 694
Barbula unguiculata 455
Barbula sardoa
Brachythecium glareosum 742 (R)
Bryoerythrophyllum recurvirostrum 442
Barbula caespiticium
Bryum spp. 589
Calliergonella cuspidata 797
Campyliadelphus chrysophyllus 711
Campylium protensum 710
Campylophyllum calcareum 795 (R)
Cratoneuron filicinum 701
Ctenidium molluscum 812
Dicranella varia 366
Didymodon fallax 457
Didymodon rigidulus 459
Didymodon sinuosus 464
Didymodon tophaceus 466
Didymodon umbrosus
Didymodon vinealis 462
Distichium inclinatum 353 (X)
Encalypta streptocarpa 557 (R)
Encalypta vulgaris 556 (R)
Fissidens adianthoides
Fissidens dubius
Fissidens gracilifolius
Grimmia pulvinata 526
Gymnostomum viridulum (R)
Gyroweisia tenuis 448
Homalothecium lutescens 739
Hypnum cupressiforme var. lacunosum 803
Leucodon sciuroides
Microbryum curvicolle 489
Microbryum davallianum 487
Microbryum rectum 488
Mnium stellare 613 (R)
Orthotrichum anomalum 656
Orthotrichum cupulatum 657 (R)
Oxyrrhynchium hians 768
Pleurochaete squarrosa (R)
Pottiopsis caespitosa 437 (R)
Pseudocrossidium revolutum
Pterogonium gracile
Rhynchostegiella tenella 771
Rhynchostegium confertum
Rhynchostegium megapolitanum
Rhynchostegium murale 760
Schistidium crassipilum 511
Scorpiurium circinatum 740 (R)
Seligeria calcarea 548 (R)
Seligeria calycina
Seligeria donniana 549 (X)
Seligeria pusilla/acutifolia 545 (X)
Syntrichia ruralis subsp. ruraliformis 495
Syntrichia ruralis subsp. ruralis 494
Tortella inflexa (R)
Tortella nitida 430 (X)
Tortula marginata 477
Trichostomum brachydontium 433
Trichostomum crispulum 434
Weissia brachycarpa var. obliqua
Weissia condensa (R)
Weissia controversa var. crispata
Weissia longifolia 427