GLOSSARY AND INDEX. 221 



Shrub, Shrubby, 39. 



Sieve-ctlls, 140. 



Sigmoid, curved in two directions, l\ke the letter S, or the Greek sigma. 



Silide, a pouch, or short pod of the Cress Family, 123. 



Siliculose, bearing a silide, or a fruit resembling it. 



Siiique, capsule of the Cress Family, 123. 



Siliquose, bearing siliques or pods which resemble siliques. 



Silky, glossy with a coat of fine and soft, close-pressed, straight hairs. 



Silver-grain, the medullary rays of wood, 13!t. 



Silvery, shining white or bluish-gray, usually from a silkj- pubescence. 



Simple, of one piece ; opposed to compound. 



Sinistrorse, turned to the left. 



Sinuate, with margin alternatel}- bowed inwards and outwards, 55. 



Sinus, a recess or bay; the re-entering angle between two lobes or projections. 



Sleep of Plants (so called), 151. 



Smooth, properly speaking not rough, but often used for glabrous, i. e. not pu- 

 bescent. 



SoboUferoiis, bearing shoots (Snboles) from near the ground. 



Solitary, single; not associated with others. 



Sordid, dull or dirty in hue. 



Sorediate, bearing patches on the surface. 



Sorosis, name of a multiple fruit, like a pine-apph. 



Sorus, a fruit-dot of Ferns, 159. 



Spadlceous, chestnut-colored. Also spadix-bearing, 



Spadix, a fleshj' spike of flowers, 75. 



Span, the distance between the tip of the thumb and of little finger outstretched, six 

 or seven inches. 



Spathaceous, resembling or furnished with a 



Spathe, a bract which inwraps an inflorescence, 75. 



Spatulate, or Spatkulate, shaped like a spatula, 52. 



Species, 175. 



Specific Names, 179. 



Specimens, 184. 



Spermapkore, of Spermophore, one of the names of the placenta. 



Spermum, I.,atin form of Greek word for seed; much used in composition. 



Spicn, Latin for spike; hence Spicate, in a spike, Spici/orm, in shape resembling a 

 spike. 



Spike, an inflorescence like a raceme, only the flowers are sessile, 74. 



Spikelet, a small or a secondarj' spike; the inflorescence of Gi'asses. 



Spine, 41, 04. 



Spindle-shaped, tapering to each end, like a radish, 36. 



Spinescent, tipped by or degenerating into a thorn. 



Spinose, or Spiniferous, thorny. 



Spiral Vessels or ducts, 135. 



Spithameous, span-high. 



Spora, Greek name for seed, used in compound words. 



Sporadic, widely dispersed. 



Sporangium, a spore-case in Ferns, &c., l.')8. 



Spo7-e, a body resulting from the fructilication of Cryptogamous plants, in them 

 the analogue of a seed. 



Spore-case (Sporangium), 158. 



Sporocarp, 102. 



Sport, a newly appeared variation, 170. 



Sporule, same as a sjiore, or a small spore. 



S/)iimescent, appearing like froth. 



Spur, any projecting appendage of the flower, looking like a spur but hollow, as 



that of Larksjiur, lig. 23!). 

 S<junmate, Sipiamose. or Squamaceous. furnished witli scales is(piama:). 



