45^ A COLLECTING TRIP TO FRENCH IIOEK. 



leaves, and the xerophytic characters are mainly evidenced in the 

 reduced leaf, involute or revolute leaves, and leaves which have 

 thick cuticles, so that they appear leathery. The following figures 

 are the results of a careful leaf-study : — 



Species. Per cent. 



I. — l.eaves simple 267 or 79-7(y 



Leaves compound, or dee]:)ly 



divided 54 or 16. 11 



11.^ — Leaf, or Leaflets, flat or expanded 142 or 43.3!^ 

 Leaf, Leaflets, or Leaf-segments, 



linear 85 or 25.37 



Leaves cricoid J2 or 21 .49 



Leaf, or Leaflets, filiform, terete, 



or semiterete 13 or 3-88 



in. — Leaf, or Leaflets, involute or 



revolute 74 or 22.08 



IV. — Leaf with dentate, lobed, or 



crenate margins 43 or 12.83 



Glabrous-leaved plants form 66.86 ])er cent, of the total 

 flora, while plants with hairy leaves, as Ranunculus pinnatus 

 (pilose) ; Podalyria cuneifolia (tomentose) ; Aspalafhus^ Ben- 

 tliann (villous) ; Anaxeton asperum (woolly) ; Gerhera tonien- 

 tosa (felted), etc., form only 30.74 per cent. Leathery-leaved 

 plants are represented by 6j species (or 18.20 per cent.), e.g., 

 Anaphrenium argenteum, Rafnia spp.. species of Proteacecc. etc. 



Over 60 per cent, of the species ]M-oduce flowers which are 

 either conspicuous in themselves or grouped into conspicuous 

 masses, and in this connection a comparison of the flowers has 

 been attempted with the following result : — 



Group I. — Flowers conspicuous or grouped into conspicuous 

 masses, e.g., Ane-mone capensis, Polygala hracteolata, 

 Cyclopia Vogelii, Mesemhriantlicmum spp., Berkheya 

 carlnioides, Erica spp., Gladiolus spp. 205 s])ecies, or 

 61 . 19 per cent. 



Group II. — Flowers of medium size, e.g., Knozoltoiiia media, 

 Pelargonimii flavum, Rafnia perfoliafa. Aspalathus 

 thymifolva. Lobelia pubescens, Royena glabra, Pa-ometra 

 coluniellaris, etc. 85 species, or 25.37 P^^" cent. 



Group III. — Flowers small (excluding the Restiacecc, Cyper- 

 acecE, and Graminecc, e.g., Rhus angustifolia, Phylica 

 plumosa. Cliff ortia spp. -Myjmne afrlcaini, Crubbia 

 stricta, etc., 19 species, or 5.67 per cent. 



Most of the species bear either white or yellow fl;nvers ; the 

 predominance of the various colours is shown in the following 

 table :— 



