44 SUB-ALPINE PLANTS 



Spur, a prolonged portion of a flower, usually somewhat tubular. 

 Stamen, the male organ of a flower considered as a whole. 

 Standard, the large upper petal of a Leguminous flower. 

 Stellate, star-shaped ; often applied to certain hairs. 

 Sterile, having stamens, but no pistils ; barren. 

 Stigma, the receptive upper portion of a pistil, where the pollen is 



dusted. The adj. stigmatic means sticky. 

 Stipulate, possessing stipules. 

 Stipules, leaf-like appendages, often in pairs and winged at the 



junction of leaves with the stem. 

 Stolon, a horizontal runner or stem-branch. 

 Stomata, the minute pores in the epidermis of a leaf, especially on 



the under side ; sing. Stoma. 

 Striate, marked with parallel longitudinal lines. 

 Style, the central portion of the pistil which bears the stigma. 

 Subulate, awl-shaped. 

 Superior, applied to an ovary which is free from and not enclosed 



by the floral envelope. 



Tap-root, the main descending root. 



Teeth, small pointed lobes on the margins of leaves, etc. 



Tendril, a thread-like organ used for climbing. 



Terete, long and cylindrical. 



Ternate, in threes. 



Testa, the outer coat of seeds. 



Thalamus, the receptacle. 



Thallus, a vegetative body not differentiated into stem and leaf. 



Thorn, a sharply pointed extremity of a branch or stalk having a 

 woody centre ; a spine. 



Throat, the upper part of a corolla-tube. 



Thyrsoid, applied to a narrow, pyramidal panicle, such as the in- 

 florescence of Campanula ihyrsoides. 



Tomentose, covered with tomentum or dense, white hair. 



Tomentum, a thick coating of short, cottony hairs, usually whitish 

 or grey ; e.g. Edelweiss. 



Transpiration, the act of giving off water from the leaves of a 

 plant, through the stomata. 



Trifid, 3-cleft. 



Truncate, ending abruptly, as if cut off square. 



Tuber, a short, thick underground stem containing food material, 

 such as an Artichoke. 



Tuberculate, covered with small obtuse, wart-like excrescences. 



Umbel, an inflorescence in which the flower-stalks radiate from a 



common point and are nearly of the same length ; e.g. Carrot. 

 Uncinate, hooked. 

 Unilateral, one-sided. 



