378 GLOSSARY 



Stoma, an opening in the leaf to admit and regulate the passage and 



exchange of gases and vapour. 

 Striate, streaked, p. 189. 

 Style, the organ intervening between ovary and stigma in many Angio- 



sperms. 



Subulate, shaped like an awl, p. 175. 

 Superficial, placenta? on the surface of the carpels. 

 Superior, of an ovary with the stamens, &c., inserted on the floral axis 



below it. 



Superposed, one above the other. 



Suppression, non-development of an organ normally present, p. 35. 

 Suspended, of an ovule hanging from the top of the chamber of the 



ovary. 

 Sutural, where the placenta obviously coincides with the coalesced 



margins of a monocarpellary ovary. 

 Suture, the line of cohesion or of the midrib of a carpel. 

 Sympetalous, same as Gamopetalous, p. 63. 

 Sympodium, an axis composed of interpolated portions, and not truly 



continuous, p. 13. 



Syncarpous, with the carpels cohering into a common ovary, p. 65. 

 Synergidae, the two naked nucleated cells which flank the oosphere in 



the embryo-sac. 



Syngenecious, with connate anthers. 

 Tapetal, appertaining to the tapetum. 

 Tapetum, a peculiar layer of cells surrounding young spores, and 



ultimately absorbed by them. 

 Tendril, a thread-like climbing organ, p. 277. 

 Terete, cylindroid but slightly tapering, p. 320. 

 Tetramerous, in fours or multiples of four, p. 267. 

 Tetrastich ous, in four rows, p. 181. 

 Theca, the anther. 



Throat, the aperture of a corolla tube. 

 Thyrsus, a panicle-like inflorescence, the branches of which pass into 



cymes, p. 36. 



Tomentose, loosely or woolly haired, p. 206. 

 Tomentum, loose cottony or woolly hairs, p. 215. 

 Torsion, twisting, p. 39. 

 Torus, bed of the flower on which the carpels, stamens, &c., are inserted; 



see Eeceptacle, p. 55. 

 Transitional, inflorescences partaking of the character of both racemose 



and cymose types, p. 37. 

 Tricarpellary, of three carpels. 



Trifoliolate, of a leaf, &c., with three leaflets, p. 304. 

 Trifurcate, three-pronged, p. 277. 



