[Vol. 9, 1922] 



232 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Explanation of Plate 



PLATE 19 



Fig. 41. Igoetes maorospora Dur. Megaspores. 



Fig. 42. 1. macrospora f. hieroglyphica (Eaton) Pfeiffer. Megaspores. 



Fig. 43. 1. Tuckermani A. Br. Megaspores. 



Fig. 44. J. foveoJata Eaton. Megaspores. 



Fig. 45. i. Engelmanni A. Br. Megaspores. 



Fig. 4G. /. Engelmanni A. Br. Megaspores with dust-like microspores in the 



background, showing relative size. 

 Fig. 47. J. Engelmanni var. caroliniana Eaton. Megaspores. 

 Fig. 48. J. azorica Dur. Megaspores. 

 Fig. 49. J. Duriaci Bory. Megaspores. 



