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Hepaticae : Yale Peruvian Expedition of i^ii. 



329 



Tlie lobules (Fig. 9, A— C) measure 0.6—0.7 mm. in length and 

 0.45—0.0 mm. in width when well developed. In normal cases the 

 upper part develops an inflated water -sac, well rounded above and 

 with an obhque mouth. In some cases the inflated portion occupies 

 the entire sac and the mouth is wide open ; in other cases the inflated 



y^^) 



Figure 9. — Frullaxia gibbosa Nees 

 A. Part of a branch bearing a paroicous inflorescence with perianth, 

 postical view, X 27. B. Two stem-leaves and an underleaf, the stylus of 

 the leaf on the right forcibly reflexed, postical view, X 27. C. Three stem- 

 leaves and an underleaf, postical view, X 17- D- Stem-leaf, antical view, 

 X 17. E. Cells from the middle of a lobe, X 225. F.— H. Bracts and brac- 

 teoles of a single inflorescence, F. the innermost series, G. the second, and 

 H. the third (perigonial), X i?- I- Transverse section of a perianth in the 

 upper third, X 27. C. was drawn from a specimen collected by the writer 

 at Content Gap, Jamaica, in September, 1906 ; the other figures, from the 

 specimens collected at Santa Ana. 



