28 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 69 



EXPLANATION OF PLATES 

 Plate i 



Fig. 1. Sphagnum Keniae. a, Stem leaf, X 20, with upper cell, dorsal 

 view, X 200. a', branch leaf, X 20; /, transverse section of branch leaf, 

 X 200. 



Fig. 2. Hymenostylium crassincrvium. a, Stem, nat. size ; a', do. of forma 

 robnsta; b, leaf, X 20; c, apex of leaf, X So; d, upper marginal cells, X 200; e, 

 basal cells, X 200. 



Fig. 3. Leptodontiopsis elata. a, Stem, nat. size; b, leaf, X20; c, apex of 

 leaf, X 50; d, upper cells, X 200; e, basal cells, X 200. 



Fig. 4. Rhacomitrium defoliation, b, Leaf, X 20; d, upper cells, X 200; 

 c, alar cells, X 200; /, nerve section, X 100. 



Fig. 5. Andrcaea kilimandscharica. a, a', Capsules, X 5- 



Leptodontium pumilum. Basal areolation ; a, pellucid, d, orange 



Plate 2 



Pliilonotis speirophylla. b, Leaves, X 20. 

 Breutelia stricticaulis. b, Leaf, X 10; c, apex of leaf, X SO. 

 Breutelia subgnaphalea. c, Apex of leaf, X 50. 

 Fig. 10. Polytrichum Keniae. b, Leaf, X4; f, marginal cells, X50; g, 

 transverse section of lamellae, X 200. 



Fig. 11. Hygroamblystegium proccrum. a, Part of stem, nat. size; b, 

 stem leaf, X 20. 



Fig. 12. Callicrgon Keniae. a, Stem, nat. size ; b, leaf, X 20 ; c, apex of leaf, 

 X 20 ; e, basal cells, X 50. 



Fig. 13. Rhynchostegiella Keniae. a, Stem, nat. size; b, stem leaf, X 20; c, 

 apex of leaf, X 50; e, alar cells, X 200. 



Fig. 14. Isopterygium sericifolium. a, Upper part of branch, X4! b, leaf, 

 X 20: c, apex of leaf, X 50; e, basal cells, X 200. 



