Saccate. Having a saclike swelling; said of petals or sepals and sometimes of sta- 

 mens and leaves (fig. 366). 



Sagittate. Shaped like an arrowhead; said of the basal margins of a leaf which are 

 drawn into points on either side of the petiole (fig. 65). 



Saline. Of or pertaining to salt; growing in salt marshes. 



Salver form. Said of a corolla in which the tube is essentially cylindrical and the 

 lobes are rotately spreading. 



Samara. A dry, indehiscent, one-seeded fruit bearing a wing, or two wings in a 

 double samara (fig. 789). 



Scaheruloiis. Finely scabrous. 



Scabrellate. Rough as a result of minute surface protuberances. 



Scahrid. Slightly rough. 



Scabrous. Rough; said of a surface that is rough and harsh to the touch. 



Scale. A small, thin, platelike lamina arising from the surface of a stem or other 

 organ. 



Scale leaf. A leaf having the size and form of a scale. 



Scandent. Climbing without aid of tendrils. 



Scape. An erect, naked peduncle of an acaulescent plant arising at the surface or 

 from below the surface of the ground (fig. 788). 



Scapose. Bearing a scape. 



Scarious. Thin and membranous, usually dry. 



Schizocarp. A pericarp that splits into 1 -seeded portions, mericarps. 



Scorpioid. Said of structures that grow as though uncoiling (fig. 650). 



Scurfy. Having flakes or scales adhering to the surface. 



Secund. Disposed on one side of a stem. 



Seep {s). A moist spot where underground water comes to or near the surface. 



Segment. An ultimate natural division of an organ or whorl of organs. 



Semi-. A prefix meaning half. 



Sepal. One of the segments of the calyx. 



Septate. Partitioned by walls (fig. 320). 



Septicidial. Said of carpels dehiscing at their junction (fig. 789). Compare Loculi- 

 cidal. 



Sericeous. Covered with soft, silky hairs, which usually point in one direction and 

 thus give the appearance of silk (fig. 785). 



Serotinous. Produced or occurring late in the season. 



Serrate. Having marginal teeth pointing forward (fig. 787). 



Serrulate. Having very small marginal teeth; minutely serrate. 



Sessile. Joined directly by the base without a stalk, pedicel, or petiole (fig. 27). 



Seta. AhrhWe. (fig. 786). 



Setaceous. Bearing bristles. 



Setose. Bearing bristles. 



Sheath. The basal part of a lateral organ that closely surrounds or invests the stem. 



Silicle. A short, two-celled fruit, usually broader than long, composed of two 

 valves which separate from the central partition; a shortened silique (fig. 789). 



Silique. An elongate, many-seeded, two-celled fruit with two parietal placentae, 

 usually with two valves that separate from the partition on dehiscence, occa- 

 sionally indehiscent (fig. 789). 



Silky. Having the appearance or texture of silk. 



Simple. Neither branched nor otherwise compound. 



Sinuate. Having a wavy margin in the plane of the blade (fig. 787). 



Sinus. The angle between lobes, as between two sepals of a synsepalous calyx, or 

 petals of a sympetalous corolla. 



Slough. A wet place or deep mud or mire; a sluggish channel. 



1727 



