1116 APPENDIX. 
Retrorss. Directed backwards or downwards. 
Rerusn. Having a rounded apex with a shallow notch at the centre. 
Revotute. Having the margins or apex rolled backwards. 
Ruacui~ys. The axis of the spikelet in grasses. 
Ruacuis. The axis of an inflorescence, or of a compound leaf or frond. 
Ruizome. A prostrate or underground rootstock or stem, giving out roots below, the 
apex progressively sending up leaves or stems, sometimes short and tuberous. 
Ruomsic. Obliquely four-sided. 
RxHomBoID, RHoMBOoIDAL. Approaching a rhombic outline; quadrangular with the 
sides oblique. 
Kis. <A primary or prominent nerve or vein. 
Rissepd. Furnished with prominent ribs. 
Rieip. Stiff and inflexible. 
RINGENT. Gaping; as a labiate corolla with an open throat. 
ROSTELLATE. Having a small beak; the diminutive of “ rostrate.”’ 
RostettumM. A viscid portion of the column in Orchideae, answering to the abortive 
anterior lobe of the stigma. 
Rostrate, Beaked; gradually narrowed into a rather long slender point. 
RosvuLate. Collected into a rosette. 
RotTaTE. Wheel-shaped; applied to a gamopetalous corolla with a short tube and 
flat spreading limb. 
RupIMENT. Any imperfectly developed and functionally useless organ. 
RurFovus. Reddish; pale-red mixed with brown. 
Rueose. Wrinkled ; covered with wrinkled lines or ridges. 
RUGULOSE. Somewhat wrinkled. 
RuMINATED. Having the appearance of being chewed, as the albumen of the nutmeg. 
RouncinatE. Applied to a pinnatifid leaf in which the lobes or segments point towards 
the base of the leaf, 
SaccaTH. Pouch-shaped ; furnished with a sac or pouch-like cavity. 
SaGirtaTe. Shaped like the head of an arrow; triangular, with two basal lobes 
prolonged downwards. 
SarococaRe. The fleshy or succulent part of a drupe or stone-fruit. 
SARMENTOSE. Producing long and flexible twigs or runners. 
ScABERULOUS. Somewhat rough or scabrous. ' 
ScABRID, Slightly rough. 
ScaBrous. Rough to the touch; furnished with minute points or asperities. 
Soate. A name usually applied to variously modified bracts or depauperated leaves, 
thin and scarious or coriaceous or fleshy, often imbricated. 
SCANDENT. Climbing. 
Scare, A naked peduncle arising from the crown of the root, or from among the radical 
leaves. 
SCAPIGEROUS. Bearing scapes. 
ScartosE, Scarious. Thin, dry, and membranous, not green. 
Scorpio. Applied to a unilateral circinately coiled inflorescence, unrolling as the 
flowers expand. 
ScROBICULATE. Marked by minute depressions. 
ScCUTELLATE. Shaped like a small platter. 
SrecunpD. Turned or pointing to one side only. 
SEED. The ripened ovule, consisting of the embryo and its proper envelopes. 
SEGMENT. One of the divisions into which a leaf or other organ may be cleft or divided. 
SEPAL. A name applied to each of the separate parts or divisions of a calyx. 
SEPALOID. Resembling a sepal. 
Septate. Divided by partitions or septa. 
SEpticipAL. When the cells of a capsule open through the dissepiments or lines of 
junction of the carpels. 
SEPTIFRAGAL, When the valves of a capsule in dehiscence break away from the dissepi- 
ments. 
Septum. A partition dividing a cavity. 
Sericuous. Silky; clothed with soft straight appressed hairs. 
SERRATE. Applied to a leaf having its margin furnished with teeth like those of a saw. 
SERRATURES. ‘Teeth like those of a saw. 
SERRULATE. Minutely serrate. 
