DERIVATION OF THE FLORA AND FAUNA 219 



The systematical position of the endemites and the geographical distribution 

 of the genera and species also found elsewhere. 



Hymenophyllaceae. 



TriclioDUTDies L. coll. The island species belon<i; to I'avdoibosc/iia Co\ie\., a pan- 

 trop. and circuni austr. genus of about 25 sp., extending north to \. Amer., Kngl. 

 and Japan. 



philippianum Sturm. "One of the most distinct species of Trichoiianes . . . 

 its cellular structure tjuite unitjue" (CllKis TENSEN <52. 3). — Also in S. Chile? (see 

 I.e. 2). 



Ingae C. Chr. Belongs to the neotrop. pyxidifcrnni group. 



exsectiim Kze. S. Chile, south to Chiloe. Near the neotrop. T. tcjiernDi Kze. 

 Serpyllopsis v. d. Bosch. A monotypical genus without near relatives (CoPELAXD 



69- 37)- 



caespitosa (Gaud.) C. Chr. (var. ferntDideziajia C. Chr. et Skottsb., slightly 

 different from the forms described from the mainland). Falkl. and Fueg. to S. Chile. 

 Hynienoglossmn Presl. Monotypical and without near affinity to any kn(nvn genus 

 {Cope LAND I.e.). 



cruentuDi (Cav.) Presl. S. Chile, Valdivia to 49° s. lat. 

 Hymejiophylluui Sm. coll. 



a. Alecodiuiii Presl. About 100, pantrop. and austral, with several sp. in X. 

 Zeal.; north to Sakhalin. 



cioicatnui Kze. S. Chile, Valdiv.-W. Patag.; Marquesas Is., Rapa. Near 

 H. polyanthes Svv., a variable pantrop. sp. 



caudiculatiini Mart. Peru, S. Braz., S. Chile, Valdiv.-49° s. lat. 



fuciforme Svv. S. Chile to W. Patag. A very distinct sp., referred to j\leco- 

 diuvi with considerable doubt (COPELAND <5(5. 95). 



b. Hynicnophylhiin s. str. About 25, austr. -circump. with outlying stations in 

 W. Eur. and Japan; H. peltatiim (Poir.) Desv. widely scattered in slightly different 

 forms. 



pcctinatuin Cav. S. Chile, Valdiv.-Fueg. An aberrant species, COPELAM) 6g. 34. 



falklandicum Bak. \V. Patag., Fueg., Falkl., S.Georgia. Related to /-^//rf/z/w 

 which, li falklandicum really belongs to Mecodium, where CoPELAND placed it 

 /^d". 94, also must be brought here; peltatum is known from extratropical regions 

 of both hemispheres and also reported from Chile (perhaps = var. Menziesii (Presl) 

 C. Chr. (5/. 4), by Christensen also quoted for Juan Fernandez — he must have 

 forgotten that in 62. 1 1 all material from there was referred to falklandicum. 



rugosum C. Chr. et Skottsb. Related to //. Uinbridgense (L.) Sm., \V. Ind., 

 Venez., Chile, Atl. islands, Mediterr., S. Afr., Austral., Tasm., N. Zeal. 



c. Sphacrocioniiim Copel. A pantrop. and austral genus of about 50 sp., richest 

 developed in trop. Amer. 



fcrrugineum Colla. S. Chile, Valdiv.-Fueg. Related to the pantropical H. ci- 

 liatian Svv. and belonging to a small austral-tricentric group of closely allied spe- 

 cies, H. Frankliniae Col. (N. Zeal., probably = fcrrugineum, CHRISTENSEN 61. 5), 



