ENGLISH 17 
382 epidermis (pl. epidermides, epiderms) -- the outer cell layer of a stem or thallus; 
frequently fragile and ephemeral; often included with the cortex in general bryophyte 
literature [f356, g291, s401]. 
383 epigonianthus (pl. epigonianthi) — applied to a three-keeled perianth with two lateral and 
one dorsal (antical) keels (opposed to hypogonianthus) [f357, g-, 
384 epigonium (pl. epigonia) — protective envelope of the embryo or young sporophyte, 
derived primarily from the archegonial venter, in most mosses it ruptures into two parts, a 
vaginula that encircles the seta base and the foot, and a calyptra that is carried aloft as a 
covering on the capsule; i.e., Bryobartramia has a persistent epigonium [f358, g293, s407]. 
385 epilithic — see saxicolous [f359, g294, s408]. 
386 epipetreous -- growing on rock (see saxicolous) [po 735, mn g295, s409]. 
387 epiphragm (pl. epiphragmata) — a circular d horizontally over the 
capsule mouth of some mosses, attached to the tips of the peristome teeth and partially 
closing the mouth of the deoperculate capsule; e.g., Polytrichum and Funaria [f361, g296, 
738, s405]. 
388 epistatic — lobules of male bracts not overlapping ventrally (opposed to hypostatic) 
[f1073, g299, s410]. 
389 epiphyllous -- growing on leaves of other plants [f362, g297, s403]. 
390 epiphyte — a plant growing on another plant [f363, g298, s404] 
391 equidistant — regularly separated or spaced [f365, g21, s411]. 
392 equitant — straddling; referring to conduplicate and strongly sheathing leaf bases; e.g., 
Fissidens [f366, g973, s413]. 
393 erect — with leaves directed toward stem apex; with leaf margins curved upward 
(adaxially); with capsules straight, not curved [f368, g111, 292, s414]. 
394 erectopatent — spreading at an angle of 45? or less (cf. spreading, patent) [f313, g112, 
s415] 
395 eremophilous -- desert-loving; dwelling in deserts [f367, g300, s-]. 
396 erose — (of leaves and perianths) irregularly notched or ragged, as though gnawed, 
frequently through abrasion of lamina [f369, g116, s416]. 
397 etiolated — drawn out or elongate stems or thalli, usually pale in color; in bryophytes such 
errant growth can be a response to exceedingly high or low light regimes [f371, g303, 
1059, s33, 476]. 
398 eutrophic —- rich in minerals; basic (opposed to oligotrophic) [f374, g304, 695, s478]. 
399 everted — turned inside out [f388, g456, s677] 
400 exannulate — lacking an annulus [f1074, g849, s479]. 
401 exapophysate — not having an apophysis [f1075, g-apx, s49]. 
402 exasperate — roughened [f874, 2821, s110]. 
403 excavate — hollowed out [f375, g117, s480]. 
404 excurrent — extending beyond the apical margin; e.g., an awn formed by a protruding 
costa [f376, g119, s481]. 
405 exine — the outermost wall layer of a spore that is produced by the spore [f377, g305, 
s483 
406 exogenous - originating from superficial rather than from internal cells or tissues; e.g., 
exogenous branches [f378, g306, s484]. 
407 exohyalocyst — see hyalocyst [f379, g307, s485]. 
