GLOSSARY 



597 



QuiNCUNCiAL (quincuncialis). Imbricate in bud, so that one perianth-leaf is overlapped on 

 one side only, the others on either or neither side. 



Raceme {racemus). A centripetal (racemose) inflorescence with an elongated axis and 



distinctly stalked flowers. 

 Racemose {racemosus, botryosus). Consisting of a main axis not ending in a flower and a 



number of weaker lateral axes. 

 Rachis {rhachis). The main axis of an inflorescence or of a compound leaf. 

 Radiating (radians). Spreading all round ; or bearing larger flowers or larger perianth- 

 leaves at the circumference than in the centre. 

 R.\dical {radical is). Arising from the base of the stem, apparently from the root. 

 Radicle [radiciila). The lower part of the embryo (below the cotyledons). 

 Raphe {raphe). A cord of tissue forming a prolongation of \h<.^ funicle along the coals of 



the ovule. 

 Receptacle {receptaculmn). The extremity of the flower-stalk bearing the floral envelopes 



and the sexual organs ; or the enlarged end of a branch upon which the flowers are 



seated. 

 Reduplicate {rediiplicaiiis). Doubled along the midrib with the margins turned outwards. 

 Reflexed (reflexus). Bent back. 

 Regul.\r (regnlaris). With all parts of the same kind, especially all periant'i leaves, equal 



in shape and arrangement. 

 Reniform {reniformis). Kidney-shaped. 

 Revolute {revolutus). Rolled backwards from the margin?. 

 Rib {costa). A strong, more or less projecting nerve. 

 Root-stock {rhizoma). The root-like, underground or prostrate lowest part of the stem 



of certain plants. 

 Rotate {rotatus). Wheel-shaped, i.e., with a very short tube and a spreading limb. 

 Rudimentary {rudimentarius). Very imperfectly developed. 

 Ruminate (ruminaius). Marked with irregular fissures. 

 Runcinate {runcinattis) . Pinnately cleft with pointed recurved lobes. 



Saccate {saccatiis). Provided with a pouch-shaped appendage. 



Sagittate {sagittaius). Arrow-shaped, i.e., with two acute basal lobes directed downwards. 



Salver-shaped {hypocraterimorphus) . With a long and narrow tube and a spreading 



limb. 

 Saprophyte (saprophyttim). A plant living upon decaying organic matter. 

 Scale {squama}. A reduced leaf usually destitute of green colour, or a similar outgrowth 



of the skin of a plant. 

 Scape {scapits). A leafless stalk of an inflorescence rising from the ground. 

 ScAKious {scariosus). Dry and membranous. 

 ScHizocARP (schizocarpium, jrnctus in coccos secediins). A fruit separating into several 



usually nut-like mericarps. 

 ScoRPioiD {scorpioidetis) . One-sided and coiled at the top. 

 Segment {segmentum). A division of a deeply divided leaf, or a division of the perianth, 



especially when the latter is deeply divided. 

 Sepal {sepalum). An outer perianth-leaf, usually small, green, and of a firm texture. 

 Sepaloid {sepaloidens). Sepal- or calyx-like. 



Septate {septatus). Chambered, i.e., divided into cells by dissepiments. 

 Septicidal {septicidus). Opening at the dissepiments or placentas. 

 Septifragal {septifragiis). Opening so that the valves of the f'.uit break away from the 



dissepiments. 

 Serrate {serratHs). Cut at the margin into sharp teeth direct towards the apex. 

 Sessile {sessilis). Without a stalk. 

 Sheath {vagina). The dilated base of certain leaves. 



Simple {simplex). Without branches ; or without segments jointed to the rachis. 

 Smooth {laevis). With an even surface (without protuberances). 



