42 ENGLISH 
pseudopodium); loosely used for axillary bristles [f902, g549, 922, s1043]. 
960 setaceous - bristle-like [f903, g172, s1044]. 
961 sheathing — surrounding and clasping the stem, base of seta or capsule; sheathing base of 
leaves is frequently composed of hyalocysts (cf. blade) [(341, g879, s399]. 
d L , E , . 
963 shoot — a stem plus ] d other appendages [f784, g960, s1145]. 
964 shoot calyptra (pl. calyptrae) —- a somewhat fleshy calyptra derived from the archegonial 
venter and axial or thalline tissue peripheral to the archegonium [f132, g962, s154]. 
965 shoot perigynium (pl. perigynia) — see perigynium [f726, g963, s861]. 
966 shoulder — an area of abrupt narrowing; e.g., the area on a leaf where the leaf base is 
abruptly narrowed to the upper lamina or blade or a similar constriction on an exostome 
tooth [f1108, g903, $633]. 
967 sigmoid — doubly curved in opposite directions, S-shaped [f904, g865, s1045]. 
968 silicicolous — growing on sandstone or siliceous rock (see saxicolous) [f905, g926, s1046]. 
969 simple pore — see air pore [f780, g248, s908 
970 simple thallus (pl. thalli) — an undifferentiated thallus, either unistratose lamina or with a 
multistratose lamina tapering to unistratose margins [f988, g249, s1079]. 
971 single peristome — in diplolepideae, having only an endostome or an exostome, or 
referring to the single row of teeth of a haplolepidous peristome [f733, g250, s869]. 
972 sinistrorse — twisted to the left, or counterclockwise when seen from apex; e.g., twist of 
seta (opposed to dextrorse) [f910, 2645, 928, $1050]. 
973 sinuate (sinuose) -- wavy, as in leaf margin, or as in intracellular wall thickening of 
Racomitrium (see nodulose) [f911, g182, $1053]. 
974 sinuolate — minutely wavy [f912, g573, $1054]. 
975 sinus — the notch or indentation between two segments, as in a bifid leaf [f913, g181, 
$1035]. 
976 cli xd &hadae Les ] 
: 
My 
phy g (opp photophytic) [f891, 2932, s427, 1131]. 
977 skiophilous — plants of shaded habitats [f890, g931, s428, 1131]. 
978 slime cell — see mucilage cell [f159, 890, s201]. 
99 slime hair - a uniseriate, hair-like, epidermal outgrowth associated with mucilage 
secretion [f412, g886, s848]. 
980 slime papilla (pl. papillae) — clavate mucilage-secreting cell, common on young leaves 
ating very short, uniseriate filaments (slime hair) [f701, g889, s827]. 
ies sci (pl socii) —- see guide cells [f914, g143, 81056]. 
pathulate — tape cimally from a broad, rounded apex [f917, g937, s435]. 
early stage of development of a moss sporophyte [f1109, g939, 
983 spear — referring piat 
8700]. 
985 spermatozoid —- male gamete; in bryop 
986 sphagnoid — Dos 
outlined by ire leaf areolation consisting of a matrix of hyalocysts 
Ork of chlorocysts, as in S; id) (see: -oid 
in f922, g942. s434]. OCySts, as in Sphagnum (opposed to leucobryoid) ( 
- C'ayloving; dwelling o 
988 : n clay [f1110, g943, s97]. 
spindle-shaped .. sec fusiform [f437, 8944, s34]. E i 
(see androcyte) [1918, 2940, s436]. 
hytes, each gamete has two flagella [f921, g941, 
MER Mee rte MESSIS IUS T MPH 
YR RUTAS FEAT IMEEM RAE NECESITE RR Ue, TOSS 
PCT c 
NR me EVE TNI 
