70 SOUTH AFRICAN FLOWERING PLANTS. 



" veins " as they are fancifully called, of woody matter, 

 branches indefinitely, the branchlets being all con- 

 nected in an irregular net. 



4. The embryo of the seed has two Cotyledons, or 

 " seed-leaves," as seen in mustard and cress when 

 germinating, as they then turn green, or in beans, 

 peas, acorns, which remain underground. 



5. When germinating, an embryo produces an 

 axial or tap-root, as of the carrot, parsnip, radish, etc. 



Division I. Thalamiflorce, i.e. the corolla and 

 stamens arise from the thalamos (the old name for 

 the floi-al receptacle, as the extremity of the flower- 

 stalk, or pedicel, is now called), and are polypetalous, 

 i.e. with all the petals separate or free. The petals 

 and stamens are hypogynous, or "under the ovary," 

 arising directly out of the receptacle. 



Division II. Disciflorce. — The only difference be- 

 tween this division and the first is in the presence 

 of several knob-like honey-glands, as in Gera'nium, 

 or a thick ring or disc (from the Latin discus, a " quoit "), 

 as in Baros'ma. 



Division III. Calycifloroe. — The corolla is poly- 

 petalous as in the two previous divisions, but now 

 stands on the edge of a rec&ptacular tuhe} This con- 

 sists of an outgrowth from the receptacle below the 

 pistil. It is sometimes dish-like, as in strawberry and 



' This will be further alluded to under the Rose Family, in which 

 it forms a characteristic feature. See above, p. 52. 



