EPIPHYLLANTHUS 245 



repens L., the (trailing arbutus, mayflower) atl. U.S. Fls. tetra- 

 morphic (Darwin, Forms of Firs. p. 297). 



Epigynae (BH.}. The 2nd series of Monocotyledons. 



Epigynium Klotzsch = Vaccinium L. p.p. (Eric.). 



Epigynum Wight. Apocynaceae (u. i). 8 Indomal. 



Epilaelia x Rolfe. Orchid. Hybrid Epidendrum Laelia. 



Epilasia Benth. et Hook. f. (Scorzonera p.p. RH.). Compositae (13). 

 5 Centr. and W. As. 



Epilobiaceae, Onagraceae. 



Epilobiurn Dill, ex L. Onagraceae (2). 160 temp, and arctic; 9 in 

 Brit, (willow-herbs). Fl. reg. , but in some slightly ) by the bending 

 of sta. and style, which project and make a landing-place for insects. 

 Of Brit. sp. several may be noticed, as the fls. form a series in regard 

 to cross- pollination, &c. In R. angustifoliitin L. the fls. are large 

 and autogamy almost impossible. Honey is secreted by the upper 

 surface of the ovary. The sta. are ripe when the fl. opens, and 

 project horiz., while the style, with its stigmas closed, is bent down- 

 wards. Afterwards the sta. bend down and the style up, and the 

 stigmas open. This is the plant in which C. K. Sprengel (1793, 

 see biography in Nat. Science, 1893) made the first discovery of 

 dichogamy. In E. hirsutum L. sta. and stigma are ripe together, 

 but the stigma projects beyond the sta.; if not pollinated it bends 

 back and touches the anthers. E. parvifloruni Schreb. is a small- 

 flowered homogamous sp. rarely visited by insects ; 4 sta. are shorter, 

 4 longer, than the style; the former are useful for cross-pollination, 

 the latter for self. The seed has a tuft of hairs aiding wind- 

 carriage. 



Epiluma Baill. (Chrysophyllum p.p.)- Sapotaceae (i). i New Caled. 



Epimatium, ovuliferous scale (Coniferae). 



Epimedium (Tourn.) L. (incl. Vancouveria C. Morr. et Dene.). Ber- 

 beridaceae. 10 N. temp. E. alpinum L. nat. in BrU. It has, like 

 most E., a 2-merous fl., which is pend., with glandular hairs on the 

 stalk. It is protog. , and after a time the valves of the anthers bend 

 upwards and roof over the stigma and the cT stage begins. Finally 

 self-pollination occurs by the elongation of the style carrying the 

 stigma among the valves. The nectaries are of a curious shoe-like 

 pattern. The seeds have a membranous aril. 



Epinetrum Hiern. Menispermaceae. i trop. Afr. 



Epipactis Adans. Orchidaceae (n. 2). 10 N. temp.; 2 Brit., E. latifolia 

 All., and E. palustris Crantz (helleborine). There are two stds. at the 

 sides of the column; the anther is acrotonic. The labellum has a hinged 

 term, portion, which by its rebound causes the insect to fly somewhat 

 upwards in leaving the flr. In so doing it rubs the rostellum, which 

 instantly becomes very viscid and cements the pollinia (which have 

 no true caudicles) to the insect. The chief visitors are wasps. See 

 Darwin's Orchids, p. 93. 



Epipetrum Phil. (Dioscorea p.p. BH.}. Dioscoreaceae. 3 Chili. 



Epiphegus Sprang. Orobanchaceae. i N. Am. 



Epiphora Lindl. (Polystachya BH.}. Orchidaceae (n. 5). i S. Afr. 



Epiphronitis x Veitch. Orchid. Hybrid, Epidendrum Sophronitis. 



EpiphyUantLus Berger (Cercus p.p.). Cact. (in. i). i Brazil. 



