INTRODUCTION TO BOTANY. 
75 
Capped, cucullata. Rolled up lengthways like a cornet. 
Geranium cucullatum, Plantago maxima. 
17. Nervature. 
Ribbed, Folia nervata , nervosa. With one or more ribs. 
Linum perenne, Plantago media, P. lanceolata, Op ulus 
palustris. 
One-ribbed, uninervia , uninervata. With only one rib. 
Linum perenne. 
Three-ribbed, Irinervia . With three ribs extended 
lengthways the leaf, from the base. Saponaria officinalis, 
Linum usitatissimum. PI. 5, fig. 16. 
Five-ribbed, quinquenervia. With five ribs, lengthways 
the leaf, from the base. Gentiana lutea. 
Seven-ribbed, septem-nervia. Alisma major. 
Melastoma grandiflora. 
Cypripedium ferrugineum. 
Nine-ribbed, novem-nervia. 
The rib is tripled, throwing 
little above the base of the leaves. 
PI. 6, fig. 3. 
With four side 
side 
Many-ribbed, multinervia. 
PL 4, fig. 2. 
Triple-ribbed, triplinervia. 
out two side-branches a 
Melastoma multiflora. 
Quintuple-ribbed, qiiintupli-nervia . 
branches. Melastoma discolor. 
Multiple-ribbed, multipli-nervia. With many 
branches. Hydrogeton fenestralis. PL 5, fig. 15. 
% Straight-ribbed, rectinervia , penninervia. Ribs running 
in a straight line. Ain us glutinosa, Castanea vesca, Car- 
pinus ulmoides. PL 4, fig. 4. 
Curve-ribbed, curvinervia , converginervia. Ribs describe 
a curve. Plantago media. PI. 5, fig. 15 ; Pl. 4, fig. 2. 
Parallel-ribbed, parallelinervia. Ribs keep at an equal 
distance from one another. Crataegus alpina, Alnus glu- 
tinosa, Castanea vesca, Carpinus ulmoides. 
Diverging-ribbed, diver ginervia. Ribs spread out as they 
go from base to tip. Opulus palustris, Alchimilla vulgaris. 
Pl. 6, fig. 16. 
Star-ribbed, stellinervia , peltinervia. Ribs run from the 
middle of the leaf to the circumference. Hydrocotyle vul- 
garis, Ricinus communis. Pl. 6, fig. 9. 
U" Nervato- veined, nervato-venosa. Ribs divided several 
times, and divided into veins. Tropaeolum majus. 
Ribless, innervia. The ribs being enveloped with pa- 
renchyme do not appear externally, and the leaves are 
considered as being without ribs. Sempervivum tectorum. 
