24 Key to the System of 



Fruiting organs often emanating at or near the summit 

 of stems or branchlets or at or near the under-side 

 of fronds 106 



106-7. Foliaceous organs leaf-like. 



Terrestrial plants, seldom tall; fruiting organs generally 

 free from the leaf -like organs, often emanating at or near 

 the summit of stems or branchlets; spore-caselets often 

 arranged in spikes and supported by bract-like organs. 

 Figures 129 to 131. Lycopodinae. 562 



Foliaceous organs converted into fronds. 



" Ferns," from dwarf to tall, some even of palm-like stature; 

 fruiting organs generally adnate to fronds. Figures 132 

 to 152. Filices. 565 



The, Acotyledoneae evasculares, numbering even more Victorian species 

 than the di- and mono-cotyledonous plants taken together, and comprising 

 Mosses, Lichens, Fungs and Algs, require to be treated in a separate volume, 

 and need to a large extent high microscopic power, not readily available in the 

 field, for recognition. 



GENERA OF PLANTS. 



HANTJNCULACEAE. 



108. Petals present ... 109 



Petals absent ... ... ... ... ... ... 110 



109. Fruitlets crowded on a short receptacle. 



Herbs, often perennial; leaves chiefly basal, usually incised; 

 sepals overlapping before expansion, simply sessile; fruit- 

 lets indehiscent, terminated by a short style. "Butter- 

 cup." Figure l. Ranunculus. 587 



Fruitlets crowded on a much elongated receptacle. 



Minute, annual herbs; leaves all basal, very narrow, un- 

 divided ; sepals extended downwards beyond the point of 

 insertion; fruitlets very minute, indehiscent, exceedingly 

 numerous. "Mousetail." Myosurus. 595 



