(Yoh. III, 1909). FRANZ STKPHAM. SPECIKS HKPATICARUM IsOtacMs. 



et lata subsymnietrica apice ad 7< vel 7* inciso-biloba, lobis breviter 

 emarginato-bilobis, acutis, celerum integerrima, margine postko rarius 

 remote bi-tridenticulato; folia mferiora ssepe inciso-biloba vel triloba,supe- 

 riora bene evolula semper bisbiloba. Cellulae supera 18 X 27 |a grosse 

 papillatae, inferae 18 X 90 u. grosse striolatae. Amphigastria caulina foliis 

 minora 3,2 mm. longa 2 mm. lata ovato-elliptica utrinque remole 5 — 6 

 dentata, apice ad V* emarginato-biloba. lobis triangulatis acutis. 



Hab. Campbell Islands (Hooker) ; Australia, Illawarra (Gamara); Tas- 

 mania (Weymouth). 



19. Isotachis Lyallii Mitt. Ant. voy. II, p. 149. 



Dioica magna flavo-virens, dense depresso-caespilosa. flaccida terricola 

 rupicola. Caulis ad 7 cm. longus validus debilis virens pluriramosus sub 

 flore saepe fasciculatim pluriramosus. Folia caulina conferta valde con- 

 cava valdeque decurva, in plano ovalo-rotundato 2,4 mm. longa, 2 mm. 

 lata, asymmetrica, basi antica ampliata nuda, superne regulariter dentato- 

 spinosa. margine postico stricto basi nudo, superne grosse spinoso, 

 apice ad V» biioba, lobis breviter bilobis, porrectis breviler linearibus 

 irregulariter valideque spinosis, saepe varie curvatis et torlis. CelluUe 

 superae 18 X 36 y. papillatae, infereae 18 X 72 y. striolatae omnes aequa- 

 liter inscrassatae. Amphigastria caulina imbricala parum palula ovato- 

 elliptica, circumcirca longe angusteque spinosa, apice ad V 2 inciso-biloba, 

 lobis porrectis oblongis valide denseque spinosis, rima angusta similiter 

 armata. Perianthia magna, angusle fusiformia maxime crassa, ore parvo 

 plurifido, laciniis ciliatis; laciniae inlernae subapicales tenerrimae similiter 

 ciliatae. Calyptra crassa, pislillis slerilibus obsita. Andrcecia ut in conge- 

 neribus in fundo foliorum caulis, geminata vel terna. 



Hab. : New Zealand; communis. 



20. Isotachis Spegazziniana Mass. Giorn. bot. it. 1885, p.220. 

 Sterilis major gracilis fusco-rufa vel fusco-brunnea, fragilis; in rupi- 



bus humidis profunde caespitosa. Caulis ad 10 cm. longus parum ramosus 

 fuscus rigidus. Folia caulina imbricata, oblique patula, disticha, valde 

 concava, in plano subcircularia brevi basi inserta, 2 mm. longa et lata, 

 apice brevissime excisula, lobis acutis vel obtusis incurvis. Cellulae superae 

 27 p.. trigonis magnis in parietibus validis; cuticula levi; inferae 18 X 54 

 cuticula slriolata. Amphigastria caulina foliis subaequimagna simillima. 

 Hab.: Fuegia (Spegazzini, Dusen). 



21. Isotachis splendens St. Hedw. 1895. p. 49. 



Sterilis magna et robusta fusco-purpurea in rupibus irroralis profunde 

 caespitosa. Caulis ad 10 cm. longus repetito-furcatus debilis. Folia caulina, 

 658 



