312 IOWA ACADEMY OF SCIENCE Vol. XXV, 191S 



Oil March 20. Germinated April 12. Hypogaeous; the cuin-ed 

 cauliele pushing- througih the soil, reddish, pubescent. Scales 

 on stem alternate. The unfolding leaves are very light green 

 in color, dentate above the middle, slightly velvet}'- in texture; 

 abundant pubescence on both under and upper surfaces. Stipu- 

 les narrow, acuminate, soon falling. Trichomes multicellular 



Fig. 73. — SeetUins' of Quercus falcuta. Di-awn by C. M. King. 



or fascicled, about five in a group, variously curved, separate 

 brandies single-celled, walls rather thick. Trichomes of stem 

 and back sides of leaf abundant. Acorns of Q. eUipsoidalis in 

 out dixir schmI bed. had geniiinated hy June 5, 10 per cent. 



