746 INTRODUCTION: TO BOTANY: . 
of composition: the primary footstalk divided into secon- 
dary footstalks, and those into third-rank footstalks. 
Triternate, ¢riternata. The: primary: footstalk dimicied 
into three, and each of these into three others; all the nine: 
bearing three leaflets each. Epimedium alpinum, Crith- 
Ah maritimum, Smyrnium vulgare, Actzea spicata. Pl. 6): 
g. 1 
* 'Tripinnate, tripinnatas The common footstalk has on 
its sides secondary footstalks, and these have also on their: 
sides third-rank footstalks, to the sides-of which leaflets are 
attached. Daucus vulgaris, Phellandrium aquaticum, ‘Tha- 
lictrum minus. 
The leaflets of compound leaves admit most of the 
characters of simple leaves. 
16. Expansion. 
Flat, Folia plana. Most plants. 
Convex, convexa. ‘The upper face convex, the lower” 
concave. Ocymum Basilicum majus. 
Concave, concava. The upper face concave, the lower. 
convex, Drosera rotundifolia, Umbilicus pendulinus, Saxi- 
fraga oppositifolia. 
Grooved, channelled, canaliculata. Long, with a hollow 
channel throughout their” whisle length. “Lygeum Spar- 
tum, Salsola decumbens, Pinus sylvestris. 
Keeled, carinata? Grooved, with a projection on the 
under surface the whole length, like the keel ofa vessel. 
Sparganium erectum, Tragopogon pratense, Stellaria ho- 
lostea! Narcissus biflorus, Ajax fenestralis. 
Folded, plicata. Having several folds lengthways. Ve- 
ratrum album, Althea officinalis, Malva sylvestri is. 
Puckered, crispa. Wrinkled irregularly over the whole 
surface. Rumex crispus, Mentha crispa, Malva crispa, 
Hypericum crispum. 
Bullate, bullata. With the upper surface raised up in 
bubblelike or conical tubercles, which are hollowed on the 
under side. Lamium Orvalla, Ocymum Basilicum majus. | 
PI.6; fig. 2. 
Wrinkled, rugosa. With the veins sunk in a little, so 
as to form a faaben of wrinkles. Salvia officinalis, Sco= - 
rodonia solitaria, Marrubium vulgare. 
Waved, undulata. The edge rising and falling alter- 
nately in roundish folds like waves. Persicaria acris, Bis+ 
torta major, Jasione montana, Inula pulicaria. 
