18 APPENDIX. 
‘Revolute, rolled backward; usually said of margins of organs or their extremities (both 
phases are apparent in the petals, fig. 2, plate 71). 
Rhachis, back-bone ; the axis of a spike. 
Khaphe, the prolongation of a seed stalk along the side of an ovule. (Plate 22, fig. 6.) 
Rhizoma, the main root. 
Rid, the main and largest pieces of the frame work of a leaf. 
Ringent, gaping open (the flowers of plate 11 3). 
Rootlets, small branches of a rhizome. (Plate 138, fig. 2.) 
Rootstock, that portion of the stem where it joins the root. (Plates 20 and 167, fig. 2.) 
Rostrate, bearing a beak. (Plate 4, fig. 5.) 
Rosulate, forming a rosette (as the leaves, fig. 1, plate 29). 
Rotate, wheel-shaped (the corollas of plate 108), 
Rotund, having a roundish outline (the leaves, fig. 1, plate 77). 
Rudimentary, imperfectly developed. 
Rugose, wrinkled (as the corm of plate 168). 
Runner, a slender, postrate branch, rooting at the end or joints. (Plate 17, fig. 2.) 
Sac, a closed membrane. 
Sagittate, shaped like an arrow-head. 
Salver-form, when the limb of the corolla spreads at right angles from a slender tube. 
Samara, a winged fruit. (Plate 35, fig. 9.) 
Sarcous, (in this work) fleshy. 
Saw-toothed, see Serrate, 
Scales, small bracteate rudiments of leaves, or bodies of that nature (as on the base of the 
stem, fig. 1, plate 105). 
_Scandent, climbing. 
Scape, a peduncle when starting from near the ground (as in fig. 2, plate 19). 
Scaphoid, boat-shaped. 
Scarious, thin and dry. : 
Scorpioid, circinate at the end (as the unilateral racemes, plate 57). 
_ Scurf, dandruff-like superficial scales. 
_— Scutellate, platter-shaped (seen upon the rachis, fig. 6, plate 151). 
Segment, one of the subdivisons of any cleft body. 
Segregate, see Separate, 
; Semi-, half; in Latin derivatives, 
_ Semiconoid, depressed: conoidal. 
_ Sempervirent, see Evergreen. 
Sepa, a lobe of the calyx. (Plate 128, fig. 2.) 
___ Sepaloid, having the appearance of a sepal. 
___ Sepia, partitions (seen in fig. 5, plate 173). 
__ Septicidal, said of a pod that splits through its partitions. 
= aes ay wae 
_ Serrate, having teeth like a saw (leaf mar: ins, plates tc), 
ie tate k twig el 
____ Sessile, said of organs that have no individual stem (as the leaves of plates 28 and 30; the 
_-___ anthers, fig. 5, plate 138, etc.).. | | ; 
ada 
pped around a stem (the bases of the leaves, plates 31 and 167; the stipules, 
