AN ENCYCLOPEDIA OF HORTICULTURE. 



505 



STIPELLATE. Furnished with stipels. 



STIPELS. Small bodies, like diminutive stipule?, 

 situated at the base of each leaflet in certain compound- 

 leaved plants (e.g., Phaseolus), but solitary, except that 

 there are two at the base of the terminal leaflet. Leaflet* 

 in such leaves are said to be " stipellate." In some 

 plants, e.g., Erythnna, (see Pig. 536), Stipels are replaced 

 by small, glandular bodies. 



FIG. 537. GARDES VARIETY OP PEA, showing Stipnles resembling 

 Leaflets in 





FIG. 538. FLOWERS, LEAF, AND LEAFLET-LIKE STIPULES OF 

 Lores JACOBJSCS. 



STIPITATE. Having a stipe, or stalk, which is 

 neither a petiole nor a peduncle. 



STIPITIFORM. Stalk-like; shaped like a stipe. 

 STIPTJLACEOTJS, STIPULAB. Belonging to 



stipules. 



Vol. IIL 



STIPULATE. Possessing stipules. 



STIPULES (from ttipvla, an upright leaf). Bodies, 

 almost always two in number, and quite alike, situated 

 one at each side of the base of each leaf, in many flower- 

 ing plants, and in one or two Ferns. Stipules vary much 

 in appearance and size ; but the two sides of each are 

 unlike one another. They often resemble leaflets, e.g., in 

 Pea (see Fig. 537), and in Lotus (see Fig. 538), and are 

 free from everything but the stem. In these cases, 

 they do the work of leaflets ; and they may even wholly 

 replace the leaves in their action on gases, the leaves 

 serving other uses e.g., tendrils in Lathynu Aphaea (a 



FIG. 539. ROSE-LEAP, showing Adnate Stipules. 



British weed). In many plants, e.g., Rose (see Fig. 539), 

 the Stipules are small, and are fixed along each side of 

 the base of the leafstalk (this arrangement is called 

 " adnate ") ; in others, they resemble bud-scales, and serve 

 the same purpose as the latter organs, protecting the 



FIG. 540. 



tender structures in buds, e.g., Beech (see Fig. 540), Oak. 

 In a few plants, Stipules of each pair are united, and 

 form a single body, opposite the leaf (Platanus), or 

 between it and the stem (Potamogeton), or form a sheath 

 or "ochrea" around the stem (Polygonum and Rumex). 

 In the genus Galium, they are so like the true leaves 

 that the latter are distinguished only by having the buds 

 in their axils; and the Stipules and leaves together re- 

 semble a whorl of true leaves. Frequently, Stipules 

 are so email as to be readily overlooked; and in a good 

 many plants they fall off early, and may thus not be 



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