LKCT. XI.] CAULINAR AND FOLIAR APPENDAGES. 653 



a. The tendril, Cirrhus*, is a long, cylindrical, 

 slender, spiral body issuing from various parts of 

 plants. The tendril is either simple (simplex), 

 consisting of one undivided piece, as in Bryony, 

 Bryonia dioica, and square-stalked Passion-flower, 

 Passiflora quadrangular is (Plate 4, fig. 8. a. a.) ; 

 or compound (compositus), consisting of a stalk va- 

 riously branched or divided. When there are two 

 divisions, the compound tendril is termed bifid 

 (bifidus), as in Marsh Lathy rus, L. palustris, 

 Smooth Tare, Ervum tetraspermum, &c. ; trifid 

 (trifidus), when there are three, as in rough-pod- 

 ded Lathyrus, L. hirsutus, and in the Garden Pea ; 

 and branched (ramosus vel multifidus), when the 

 divisions are more numerous, as in Everlasting Pea, 

 Lathyrus latifolius (Plate 4. fig. 7) ; climbing Cobea, 

 C. scandens, &c. Tendrils rising from the stem, or 

 the branches, in the axillae of the leaves, are named 

 axillary (axillares), as exemplified in the Passion- 

 flower (Plate 4, fig. 8) ; subaxillary (subaxillares), 

 when they originate below the leaf; lateral ( late- 

 rales), when at one side of it, as in Bryony; and 

 opposite (oppositifolii), when they are directly op- 

 posite to the insertion of the leaf, as in the Vine, 

 Vitis. They are said to be petiolar (petiolares), 

 when terminating the common petiole of a com- 

 pound leaf, as in Everlasting Pea (Plate 4, fig. 7) ; 



* " Cirrhus est vinculum filiforme spirale, quo planta alio 

 " corpori alligatur." Phil. Bot. 84-. 5. 



