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SECTION IV.-CYCLOBALANTJS. 



Cyclobalanus. — Male spikes erect ; styles and leaves gs^Pasaxia; involucres cupulatc, 



solitary or in threes, their bracts connate into entire or denticulate lametlt 

 as in Ctclobalaxopsis ; leaves entire. 



Glans ovoid (obovoid in Q. Thomsoni), conspicuously longer than broad. 



Leaves glabrous. 



Leaves oblong-lanceolate ; glans an inch or more long 4«i. Q. daphnoi,lea. 



Leaves ovate to ovate-oblong, glaucous beneath ; glans -75 in. long 



(/ Cyclobalanopm) 47 - $• tumorpka. 



Leaves not glabrous. 



Leaves obovate, minutely tomentose beneath ; glans glabrous (« t tinder 



t> • \ 20. Q. tAtidhyana. 



PawM'i) 



Leaves ovate- elliptic, minutely puberulous beneath ; glans pubescent . 59. Q. Ewycku var. Utti- 



folia. 



Leaves more or less lanceolate ; both surfaces minutely stellate, tomen- 

 tose ; glans minutely sericeous or glabrous 48. Q. conoca.pa. 



Leaves glabrescent ; glans obovoid 



Glans hemispheric, not conspicuously longer than broad. 



Cupule covering half the glans or more. 



Leaves with short thick petioles. 



Leaves elliptic-oblong ; cupule with denticulate lamella, sessile . . 49. Q. ***"««' 

 Leaves lanceolate, cupule with entire lamella, pedunculate . . . 50. Q. Xetnuardtu. 



Leaves with long slender petioles. 



Leaves lanceolate, cupules sessile 



Cupule covering less than half the glans. 



Lamella of cupule more or less denticulate. 



Leaves from elliptic to oblong-lanceolate ; female flowers always ^ ^ ^^ _ _ 



solitary ' * ' ' * ' 



Leaves oblanceolate to obloog-laneeolate ; female flowers » threes, ^ ^ ^^ 



rarely solitary 



