(270) 



5. Q. AGRIFOLIA Nee. S : aments pendu- 

 lous; abortive ovules apical; acorns maturing 

 the first year; leaves persistent, coriaceous, not 

 reticulate; nut acute. — Common. Spring. 



Tall tree, the genuine ^' live oak" of the 

 Californians. 



6. Q. WrsLiZENi DC. S : aments pendu- 

 lous; abortive ovules apical; acorns biennial; 

 leaves persistent, coriaceous, reticuhxte, entire 

 to sinuately lobed; petioles short; nut acute. 

 Niles. Spring. 



Stately tree, frequently mistaken for "live 

 oak." 



7. Q. KELLoaGii Newb. 6 : aments pen- 

 dulovis; abortive ovules apical; acorns biennial; 

 leaves deciduous, pinnatifid-lobed; petioles 

 long; nut obtuse. — Marin County. Spring. 

 *'BlackOak." 



8. Q. DENSIFLORA Hook. & Am. Aments 

 erect, androgynous. — Marin County. Santa 

 Cruz mountains. Summer. "Chestnut." "Tan- 

 ner's bark." 



2. Castanopsis Spach. Chinquapin. 



Monoecious, Aments slender, panicled on 

 the young shoots. S perigonium 5-lobed; 

 stamens 10. ? flowers 1-3, in a scaly invo- 

 lucre, sessile at the base of the anient; peri- 

 gonium 6-lobed, 2-seriate; fruit 1-3 nuts en- 



