The New Encyclopędia BritannicaEncyclopędia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 215
... heads ) is typically cymose ( determinate ) . The terminal head blooms first , followed by the terminal heads of the main branches . After that the sequence is less clear , not in- frequently being mixed , with both cymose and racemose ...
... heads ) is typically cymose ( determinate ) . The terminal head blooms first , followed by the terminal heads of the main branches . After that the sequence is less clear , not in- frequently being mixed , with both cymose and racemose ...
Page 216
... heads occur in various tribes of the Asteraceae family . The ligulate head , on the contrary , is almost entirely restricted to one tribe , the Lactuceae ( Cichorieae ) , and is found in all members of that tribe . Ligulate heads ...
... heads occur in various tribes of the Asteraceae family . The ligulate head , on the contrary , is almost entirely restricted to one tribe , the Lactuceae ( Cichorieae ) , and is found in all members of that tribe . Ligulate heads ...
Page 217
... heads aggregated into a secondary head with its own secondary involucre . Another assumption based on the premise that the flow- er head is a complete inflorescence is that the involucre primitively consisted of several series of green ...
... heads aggregated into a secondary head with its own secondary involucre . Another assumption based on the premise that the flow- er head is a complete inflorescence is that the involucre primitively consisted of several series of green ...
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