210 
[VoL. 5, 1918] 
ANNALS OF THE MISSOURI BOTANICAL GARDEN 
EXPLANATION OF PLATE 
PLATE 12 
Selaginella Landii Greenman & Pfeiffer 
Mexico 
From the type specimen, Barnes & сна No. 2024, іп the Нег- 
barium of the Missouri Botanical Garde 
шы x 
Fig. 6. 
Fig. 7. 
Leaf from dorsal surface of branch; X 44. 
Leaf from ascending tip of branch; 
Detail of portion of margin of leaf, кырр long cilia; 
Sporophyll; 
X 44. 
. 5. Detail of portion of margin of sporophyll, showing short 
430. 
Spike or strobilus; X 6.5. 
Megasporangium; Х 36. 
Megaspores and group of microspores; X 72. 
> Ke 
10. Microspores, ioris (a) external appearance, and (b) 
x 430. 
Fi 
optical section ; 
