LECT. XI.] CAULINAK AND FOLIAR APPENDAGES. 665 



sernitransparent, as in many species of the Fir tribe, 

 Pin-us; Knot-grass, Polygon um aviculare; Shrubby 

 Cinquefoil, Potentilla/r?^/cosa, &c. With respect 

 to situation, or attachment, stipules are most com- 

 monly lateral (laterales), which implies that they 

 stand at the base of the petiole, on each side of it, 

 as in Passiflora, Lathy rus, &c. ; but the term in- 

 termediate (intermedice) is used when their situa- 

 tion is on each side of the stem, between opposite 

 leaves, as in many of the Geranium tribe, and in 

 the Coffee plant, Coffea arabica. They are said 

 to be embracing (amplexantes vel amplexicaules), 

 when their base surrounds the stem, as in the Mul- 

 berry, Moras ; the Fig, &c. ; and sheathing ( va- 

 ginantes), when they inclose a portion of the stem 

 like a sheath, as in the natural families of Poly- 

 gonece and Rubiacece ; in which case they are appa- 

 rently a mere dilatation of the internal part of the 

 petiole. When the sheathing stipule separates at 

 the top from the stem, and forms a projecting bor- 

 der, it is termed salver- shaped (hypocraterifor- 

 mis), as in the Oriental Plane (see d. d. cut p. 460); 

 Persicaria, Polygonum orientate, &c. When the 

 attachment is upon the petiole itself, it is either 

 marginal (marginalis petiolo adnata), resembling 

 a membranous border extended along the sides of 

 the petiole, as in the Rose tribe (75. p. 515), the 

 Cinquefoils, the Pepper Plant, Piper nigrum, &c. ; 

 or intrafoliaceous (infrafoliacea vel intrapetiolaris), 



