Fig. 229: Cy perns erythrorhizos: a, scale with rachis wings attached, X 20; h, part 

 of spikelet, with some scales removed to show inner hyaline membranes forming wings 

 on rachis, X 20; c, Hnear spikelet, X 8; d, mature achene, trigonous and with surface 

 finely cellular, X 28; e, habit, showing the compound umbels and their numerous in- 

 volucral leaves which are unequal in length, X 's; f, flower, X 20; g, ray of inflores- 

 cence, showing branches of divaricate spikelets and scabrellate involucral leaves, X %. 

 (From Mason, Fig. 133). 



