Underwood : The genus Stenochlaena 45 



Foliar pinnae 3.5-5 cm. wide, abruptly acuminate at the apex. 



10. S. cochinchinensis. 



Pinnae of the sporophyls 20-30 cm. long, long-stalked (2 cm.). 

 Pinnae of the sporophyls gradually tapering at the apex. 



22. S. Smithii. 

 Pinnae of the sporophyls abruptly acuminate at the apex. 



Pinnae narrow, about 2 cm. wide. . j8. S. oleandrifolia. 



Pinnae wider, 3-3.5 cm. wide, few-jugate. 



21. S. Seemannii. 



The last two species are quite near to each other in form and 

 general appearance and may represent only two phases of the same 

 species. Since the meager materials represented in herbaria are 

 insufficient, it is better to keep them apart, as they have already 

 been established, awaiting further collection in the South seas. 

 With the strong possibility of distinctness, this is a more rational 

 proceeding than to unite them. This is a far different proposition 

 from separating doubtful things in the event of a possibility of 

 specific distinctness. The geographic range of the two species is 

 practically the same, which further decreases the probability of 

 specific distinctness. As a species or group they are entirely dis- 

 tinct from any other members of the section. 



Species excludenda 



Stenochlaena feegeensis Brack. Filices U. S. Expl. Exped. 

 78. pi. 11. f. 1. 1854. (Type from the Fiji Islands, Wilkes Exped.) 



The synonymy and distribution of the species of § Lomariopsis 

 of the Old World are given in an alphabetical series : 



8. Stenochlaena Brackenridgei (Carruth.) [Figure 4.] 



Lomariopsis Brackenridgei Carruth. Fl. Vit. 373. 1871. (Type 

 from the Fiji Islands.) 

 Range: Known only from its type locality. 



9. Stenochlaena buxifolia (Kunze). 



Acrostichum buxifolium Kunze, Die Farrnkr. I: 171. //. J2. 



181.5. (Type from Madagascar.) 



Icon.: Kunze, loc. cit. 



Range : Known only from Madagascar. 



Poly podium orbiculatumYoxv. Encyc. Meth. Bot. 5: 525 (type 

 locality, Java) is referred to this species as a synonym by Kuhn, 



