262 



FABERIA 



Faberia Hemsl. Compositae (13). i China. 



Fabiana Ruiz et Pav. Solanaceae (4). 15 S. S.Am. Cult. orn. shrubs. 



Fabricia Gaertn. = Leptospermum Forst. (Myrt.). 



Fabricia Scop. (Afysicarfus F.P.). Leguminosae (in. 7). 16 palaeo- 



trop. 



Facelis Cass. Compositae (4). 

 Fades, external appearance. 

 Facultative, incidental. 

 Fadogla Schweinf. Rubiaceae (n. 

 Fadyenia Hook. Polypodiaceae. 



3 temp. S. Am. 



W. Ind. The 



i). 20 Afr. 

 i, F. prolifera Hook. 

 sterile 1. produce buds at the tips. 

 Fagaceae (EP.; Citpuliferae p.p. />'//.). Dicots. (Archichl. Fagales). 

 5 gen., 350 sp. ; three chief centres of distr. Fagus, Castanea 

 Eucastanea and Quercus N. extra-trop., Pasania and Castanopsis in 

 trop. As. and Calif., Fagus Nothofagus in S. Am., N.Z., and 



Floral diagrams of Castanea vulgaris, after Eichler. A, diagram of $ cyme in axil 

 of catkin-leaf, the sta. and rudimentary gynoeceum only shown in the first fl. 

 The sequence of the fls. is indicated by the figures i, 2, 3. B, diagram of ? 

 partial infl. b = bract, aS = bractejles, a' (3' a, j3, = bracteoles of second order. 



S. Austr. Most are trees with simple 1. and scaly stipules that drop 

 off as the 1. expand. The fls. come out in the axils of the 1. of the 

 current year and are diclinous and anemoph., arranged in catkins or 

 small spikes (exc. Fagus i ). In general there is a close resemblance 

 to Betulaceae, and, as in that fain., the fls. are usu. in dich. cymes 

 in the axils of the catkin-1.; there are often, however, > three fls. 



P bract-like, (4 7). i fl. with as many to twice as many or 

 oo sta. undivided, with or without rudimentary style. _ ? fls. usu. in 

 dich. of 3 in Castanea, i in Fagus, i in Quercus, &c. G usu. (3) with 

 3 styles (exc. sp. of Castanea) ; loculi 3, usu. visible before fert. Plac. 

 axile, each bearing i pend. anatr. ov. with i integuments. Fr. a 

 i -seeded nut. Seeds without endosp. 



The group of nuts is surrounded by a cup-like organ termed a 

 cupule ; in the oak there is one nut in each cupule, in the beech two, 

 in the chestnut three. About the morphology of this organ there has 

 been much discussion. Eichler (see diagram above, fig. B, and Biii- 

 thendiagr.) regards it as the combined bracteoles a' j8' a, /3, , Prantl 

 (Engler's Bot. Jahrb. vm. 1887) as an axial outgrowth. See also 

 Celukov>ky in Pringskeim's Jahrb. xxi. 1890, and cf. Betulaceae. 

 The cupule only becomes clearly visible after fert. 



