47 



date crown. Brachy-dactyla* (N. polyglochin, A. Br., 

 in its broadest sense [as a type of the group, T. F. A.]) 

 (Fig. 48, tip of N. microcarpa, A. Br.); consult also 

 species under f. 



Fig. 48. 



X Coronula of the sporophyd. short. 

 Sporophydia solitary. 



a) Terminal segments of leaves not always short. 47. 



oligospira A. Br. 



1) Nucleus, 260-330 long; f. genuina. 



2) Nucleus, 330-350; leaves twice divided; f. 



Javanica. 



3) Nucleus, 390-400; f. Indica. 



b) Terminal segments short. 48. Abyssinica A. Br. 



c) Terminal segments extremely short ; nucleus, 200- 



2 20 long. 49. microglochin A. Br. 

 Sporophydia aggregated. 



1) Length of nuclei, 180. 50. microcarpa A. Br. 



2) Length of nuclei, 240-280. 51. (sub-sp. or van) 



Glaziovii Zell. 



3) Length of nuclei, 370-450. 52. (sub-sp. or var.) 



megacarpa Allen. 

 X X Coronula of Sporophydia elongated (N. polyglochin, 



broadly). 



Sporophydia aggregated (leaves commonly thrice 

 divided). 53. polyglochin A. Br. 



1) Length of nucleus, 300; diam. of stem, about 1000; 



dimorphous. 533. Roxburgii A. Br. 



2) Length of nucleus not known; diam. of stem, 500; 



homomorphous. 53b. Zollingen A. Br. 



3) Length of nucleus, 190-220 ; diam. of stem, 500; 



dimorphous. 53C. nicobarica A. Br. 

 Sporophydia solitary; leaves 4-divided. 



Q Inferior cells of the terminal segments sub-quad- 

 ratic ; coronula unknown. 45- Mauritiana 

 A. Br. 



