FAGACEAE 
375 
anthers. The stigma protrudes beyond the sta. in most firs, so as to 
be touched first, but every stage can be found from highly protogy- 
nous firs, with very protruding stigmas to almost homogamous firs, 
whose stigma does not protrude and where self-fertilisation is the rule. 
Eurya Thunb. Theaceae. 36 sp. Mexico, S. Am., W. and E. Ind. 
Euryale Salisb. Nymphaeaceae (in). 1 sp. S. E. As. Fir. epigy- 
nous. The seeds and roots are eaten in China. 
Eurybia Cass. = Olearia Moench. 
Eurycles Salisb. Amaryllidaceae (1). 2 sp. N. Austr., Malaya. 
Eusporangiatae. See Filicineae. 
Euterpe Gaertn. Palmae (iv. 6). 10 sp. trop. Am. E . edulis Mart., 
the Assai palm, yields an edible fruit ; a nutritious beverage is pre- 
pared from it by soaking the fruit in water. 
Eutoca R. Br. = Phacelia Juss. 
Evodia Forst. Rutaceae (1). 45 sp. trop., exc. Am. 
Evolvulus Linn. Convolvulaceae (1. 2). 80 sp. trop. and sub-trop. 
Exacum Linn. Gentianaceae (1. 1). 30 sp. Old World trop. The 
style is bent to one side or other of the fir. ; both arrangements occur 
on the same plant (see p. 75). 
Exccecaria Linn. Euphorbiaceae (A. 11. 7). 30 sp. trop., exc. Am. 
For E. sebifera Muell. -Arg. see Sapium. 
Exogonium Choisy = Ipomoea Linn. 
Faba (Tourn.) Linn. =Vicia Linn. 
Fadyenia Hook. Polypodiaceae. 1 sp. F. prolifera Hook., W. Ind. 
The sterile leaves produce buds at the tips. 
Fagaceae. Dicotyledons (Archichl. Fagales). 5 gen. with 350 sp. ; 
there are three chief centres of distribution — Fagus, Castanea § Eu- 
castanea and Quercus in N. extra-trop. regions, Pasania and Casta- 
nopsis in trop. As. and Calif., Fagus § Nothofagus in S. Am., N. Z., 
Floral diagrams of Castanea vulgaris , after Eichler. A, diagram of S cyme n axil 
of catkin-leaf, the sta. and rudimentary gynoeceum only shown in the first fir. 
The sequence of the firs, is indicated by the figures 1, 2, 3. B, diagram of ? par- 
tial infl. b = bract, a /3 = bracteoles, a! /3' a, £/ = bracteoles of second order. 
and S. Austr. Most are trees with simple leaves and scaly stipules 
that drop off as the leaves expand. The firs, come out in the axils 
