GLOSSARY 



within, versus, p.p. of rerto, I turu.) Anthers 

 turned to face the floral axis. 



Involucre. (L. involucrum, a covering ; involvo ; 

 in, in ; volvo, I roll.) The whorl of bracts 

 around a .single flower, or a head of 

 flowers. 



Irregular. (O.F. irregulier ; L.L. irregularis; 

 in, not ; regularis ; regula, a rule ; regere, to 

 rule.) Flowers having petals or sepals un- 

 syinmetrical. 



Irritable (L. irritabilis ; irrito, I excite.) Re- 

 sponding to the touch. 



Keel. (A.S. ceol, a ship, a keel ; cede, the 

 bottom of a ship.) The two innermost petals 

 of a papilionaceous flower. (Plate XII., 

 Fig. B.) 



Labiate. (L. labium, a lip.) Petals or sepals 

 arranged in a two-lipped manner. 



Laciniate. (L. lacinia, a fringe, a border.) Cut 

 into narrow incisions or lobes. 



Lamina. (L. a plate, a leaf.) The expanded 

 portion of the leaf. 



Lanceolate. (L. lanceolatus ; lauceola, dim. of 

 laneea, a lance.) Leaves which are lance- 

 shaped — long, narrow, and pointed. (Plate 

 I., Fig. D.) " 



Latex. (L. lac, lactis, milk.) Milk-like juice. 



Legume. (Fr. legume; L. legumen, pulse; lego, I 

 gather.) A one-celled pod opening by its 

 edges. (Plate III., Figs. 14, 15.) 



Lenticel. (Fr. lenticelle, dim. of lentieule; L. 

 lenticula, dim. of lens, a lentil.) Cork-like 

 spots on twigs, branches, and stems which 

 admit air. 



Ligulate. (L. ligida, a strap; dim. of lingua, a 

 tongue.) A strap-shaped corolla, the lower 

 part forming a tube, and the upper portion 

 flattened out. (Plate II., Fig. F 2 .) 



Linear. (L. linearis ; tinea, a line, a linen thread.) 

 Leaves long and narrow with parallel edges. 

 (Plate I., Fig. B.) 



Lobe. (Gr. lobos ; lepo, to peel.) A more or less 

 rounded portion of a leaf. 



Lomentum. (L. lomentum, a paste of bean-meal 

 and rice for preserving the skin ; lavo, lotwm, 

 I wash.) An indehiscent legume with con- 

 strictions or transverse articulations between 

 the seeds. 



Lyrate. (L. ; Gr. lyra, a harpi) A pinnatifid leaf 

 with the terminal lobe large and rounded, and 

 the side lobes getting smaller towards the 

 base. 



XV 



Male flowers. Those containing stamens only, or 



occasionally with a rudimentary ovary. 

 Margin. (O.F. margine ; L. margo, marginus, a 



brink, a margin.) The edge of the leaf. 

 Membranous. (L. membrana, a thin skin; mem- 



hrum, a limb.) Thin, like soft paper in 



texture. 

 Mericarp. (Gr. meros, part ; karpos, a fruit.) 



The one-seeded portions into which some 



fruits break up. 

 Midrib. (A.S. mid, middle ; riJib, rib.) A strand 



of vascular tissue running through the centre 



of the leaf. 

 Mitraeform. (Gr. mifra, a belt, a turban.) 



Conical, and somewhat dilated at the base. 

 Monadelphous. (Gr. monos, alone ; adelphos, a 



brother.) Stamens united by their filaments 



into one bundle. (Plate XIII., Fig. F.) 

 Moniliform. (L. monile, a necklace ; forma, 



form.) Like a string of beads. 

 Monoecious. (Gr. monos, one ; oikos, a house.) 



Having stamens and pistils in separate flowers 



on the same individual plant. 

 Mucronate. (L. mucronaius : mucro, a sharp 



point.) Having a small, sharp point. 

 Multicostate. (L. multus, many; costa, a rib.) 



Leaves with a number of chief veins. 

 Mycelium. (Gr. myites, a fungus ; elos, a nail or 



wart.) The delicate interwoven threads from 



which the fungus is developed. 

 Nectary. (L. nectar, honey ; Gr. nektar, drink of 



the gods.) Glands for the secretion of nectar. 

 Neuter. (L. neuter, neither the one nor the other ; 



we, not ; titer, which of two.) Of neither sex ; 



sterile. (Plate XXXIV.) 

 Nodes. (L. nodus, a knot.) Places where leaves 



are attached to the shoot. 

 Nut. (A.S. knuf ; L. iiii.c, a nut.) An achene 



with hardened walls. (Plate III., Figs. 3-6.) 

 Nutlet. A little nut. 

 Obcordate. (L. ob, inversely; cor, the heart.) 



Inversely heart-shaped. 

 Oblong. (L. ob ; longus, long.) A leaf which is 



long, and fairly broad. (Plate I., Fig. F.) 

 Obovate. (L. <i/i, inversely ; ovatus, egg-shaped ; 



ovum, an egg.) Inversely egg-shaped. 

 Obsolete. (L. obsoletus, p.p. of obsoleo, I go out 



of use ; ob, and soleo, I use.) All vanished. 

 Obtuse. (L. obtusus, p.p. of obtundo, blunt; ob, 



and tundo, tudi, I beat.) Bluntly rounded 



at apex. (Plate I., Fig. K.) 

 Opposite. ( L. oppositus, p.p. of oppono ; ob, 



B 2 



