198 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 3 



Mlanje District: Mlanje Mountain; Luchenya Plateau, common under shelter of 

 rocks on grassland, 15-30 cm. high, leaves erect, bullate, 2100 m., June 27, 1946, 

 16484. Tropical east Africa. 



GLEICHENIACEAE 



Gleichenia polypodioides (L.) J. E. Sm. Mem. Acad. Turin 5: 419. 1793. 



North Nyasa District: Nyika Plateau, gregarious in small tangles, edges of 

 montane forest on escarpment, 2100 m., Aug. 17, 1946, 17277. Mlanje District: 

 Mlanje Mountain; Luchenya Plateau, massed on sheltered precipitous slopes, 25- 

 100 cm. high, leaves more or less glaucous below, 1870 m., July 8, 1946, 16741. 

 South Africa, Madagascar, Mauritius, and Amsterdam Island. 



HYMENOPHYLLACEAE 



Hymenophyllum capillare Desv. Mem. Soc. Linn. Paris 6: 333. 1827. 



Mlanje District: Mlanje Mountain; Luchenya Plateau, massed near ground on 

 trunks of Widdringtonia; leaves pendent, brownish, 1890 m., June 30, 1946, 16538; 

 ibid., 1750 m., June 25, 1946, 16420. Tropical east and west Africa, Mascarenes, 

 and Tristan d'Acunha. 



Hymenophyllum fumarioides Willd. Sp. PI. 5: 526. 1810. 



Hymenophyllum capense Schrad. Gott. Gel. Anz. 1818: 919. 1818. 

 Hymenophyllum natalense v.d.B. Ned. Kr. Arch. 4: 386. 1859. 

 Hymenophyllum limminghei v.d.B. Ned. Kr. Arch. 5 3 : 151. 1863. 



North Nyasa District: Nyika Plateau, massed on lower trunk of a tree in mon- 

 tane forest, 2-4 cm. high, 2250 m., Aug. 16, 1946, 17260. Mlanje District: Mlanje 

 Mountain; Luchenya Plateau, in mass cushions on exposed branches of a tall Wid- 

 ringtonia tree, about 2 cm. high, 1890 m., June 30, 1946, 16547, 16548. A small 

 form in which some of the fronds are 1-pinnate only, regarded by Copeland (Phil. 

 Jour. Sci. 64: 133. 1937) as a geographical segregate of the Australian H. rarum 

 R. Br. Extends from the Cape, through Nyasaland to the Mascarenes. 



Hymenophyllum kuhnii C. Chr. Ind. Fil. 363. 1905. 



Hymenophyllum meyeri Kuhn in Engl. Hochgebirgfl. Trop. Afr. 94. 1892. Non Pr. 



Mlanje District: Mlanje Mountain; Luchenya Plateau, in large masses on 

 trunks of trees along a stream, leaves pendent, 1750 m., June 25, 1946, 16418; 

 ibid., massed low on tree trunks in moist primary forest, 1890 m., July 13, 1946, 

 16822. Tropical east Africa, San Thome, Annobon. 



Hymenophyllum polyanthos Sw. Jour. Bot„ Schrad. 1800 2 : 102. 1801. 

 Mecodium polyanthos (Sw.) Copel. Phil. Jour. Sci. 67: 19. 1938. 



Mlanje District: Mlanje Mountain; Luchenya Plateau, in large masses on tree 

 trunks in rain-forest, 1800 m., June 25, 1946, 16413; ibid., common epiphyte in 

 deep forest shade, about 10 cm. high, 1890 m., June 30, 1946, 16535. An aggre- 

 gate species with an impressive synonymy. Pantropical. 



Trichomanes mandioccanum Raddi, Plant. Bras. 1: 64. 1825. 



Mlanje District: Mlanje Mountain; Luchenya Plateau, wet mossy bank of a 

 stream in forest, leaves stiff, very dark green, 1890 m., July 13, 1946, 16819. A 

 species common to Brazil and tropical Africa. 



Trichomanes melanotrichum Schlechtend. Adumbr. Fil. 56. 1832? 



Kota-kota District: Nchisi Mountain, covering moist rocks in rain-forest, 3-4 

 cm. high, 1500 m., July 28, 1946, 17001. Mlanje District: Mlanje Mountain; 

 Luchenya Plateau, massed on lower tree trunks in primary forest, 1890 m., July 

 13, 1946, 16823. Tropical and South Africa, Mascarenes. 



