288 C. SKOTTSBERG 



a. Endemic (17): Riccardia adglutinata and leptostachya, Metzgeria multifor- 

 mis, Tylunanthussilvaticus, bilobatus and densiretis, Lophocolea papulosa, angulata 

 and submuricata, Trichocolea opposita, Schistochila Skottsbergii, Balantiopsis hians 

 and lancifolia, Lopholejeunea spinosa, Strepsilejeunea squarrosula and macroloba, 

 Cololejeunea Skottsbergii. 



b. Also found in Chile (44): Riccardia fuegiensis, breviramosa, variabilis and 

 nudimitra, Metzgeria decrescens, Symphyogyna circinata and Hochstetteri, Jame- 

 soniella maluina and oenops, Tylunanthus limbatus, Mylia fuscovirens and ligulata, 

 Lophocolea rotundifolia, fernandeziensis, chilensis, attenuata, textilis and divergenti- 

 ciliata, Chiloscyphus integrifolius and lobatus, Saccogyna squarristipula, Adelanthus 

 sphalerus, Lepidozia bicuspidata, pseudozoopsis, fernandeziensis and Jacquemontii, 

 Trichocolea verticillata, Schistochila berteroana and pachyla, Balantiopsis cancellata, 

 chilensis and purpurata, Radula hastata. microloba, Mittenii and Dusenii, Madotheca 

 chilensis and subsquarrosa, FruUania Eckloni, chilensis, lobulata and stipatiloba, 

 Brachiolejeunea spruceana, Strepsilejeunea acuminata. 



II. Neotropical element. — 13 sp. (10.5 %). 



a. Endemic (3): Fossombronia fernandeziensis, Anthoceros Skottsbergii, Le- 

 jeunea reticulata. 



b. Also in tropical South America, extending to Chile, or southern, but pre- 

 sumably of tropical origin (10): Megaceros fuegiensis, Androcryphaea confluens, 

 Anastrophyllum leucocephalum, Bazzania peruviana, Harpalejeunea oxyota and 

 setifera, Siphonolejeunea nudicalycina, Aphanolejeunea asperrima and diaphana, 

 Colura bulbosa. 



III. Chilean element. — 27 sp. (21.8 %). 

 Chilean species without tropical connection, nor suggesting Antarctic rela- 

 tions. 



a. Endemic (5): Solenostoma obtusiflorum and rostratum, Plagiochila fusco- 

 brunnea, Lepidozia fragillima and disticha. 



b. Also in Chile, especially in the south (18): Solenostoma crassulum, Ana- 

 strepta bifida, Plagiochila gayana, fasciata, hyadesiana, deformifolia, chiloensis, 

 rectangulata, remotidens, pudetensis, homomalla, neesiana, riparia, squarrosa, 

 robusta, elata and Xotarisii, Herberta runcinata. 



c. Cosmopolitan (4): Plagiochasma rupestre, Reboulia hemisphaerica, Lunularia 

 cruciata, Marchantia polymorpha. 



Even if not the Juan Fernandez Hepatics are almost entirely Antarctic as 

 Herzog thinks, the Antarcto-tertiary element is proportionally larger than in any 

 other group, and it is not impossible that genera like Megaceros or Harpalejeunea^ 

 the island species of which were referred to the neotropical element, are Antarctic, 

 and that this is true also of Bazzania, represented in I and II, but on the other 

 hand we must admit that pantropical genera like Riccardia, Anilioceros, Mega- 

 ceros, Bazzania, Lepidozia, Radula, Madot/ieca, Fridlania etc. may have extended 

 far south during a warmer period and given rise to important groups all around 

 the circumpolar belt, and that we have to show that such disjunct southern groups 



