210 GLOSSARY AND INDEX. 



Intercellular Passages or Spaces, 131, 143. 



Interfoliaceous, between the leaves of a pair or whorl. 



Internode, the part of a stem between two nodes, 13. 



Interpetiolar, between petioles. 



Interruptedly pinnate, pinnate with small leaflets intermixed with larger. 



Intine, inner coat of a pollen grain. 



Intrafoliaceous (stipules, &c.), placed between the leaf or petiole and the stem. 



Introrse, turned or facing inwards ; i. e. towards the axis of the flower, 101. 



Intruse, as it were pushed inwards. 



Inversed or Inverted, where the apex is in the direction opposite to that of the organ 

 it is compared with. 



Involucel, a partial or small involucre, 76. 



Involucellate, furnished with an involucel. Involucrate, furnished with an involucre. 



Involucre, a whorl or set of bracts around a flower, umbel, or head, &c, 74, 75. 



Involute, in vernation, 72; rolled inwards from the edges, 97. 



Irregular Flowers, 86, 91. 



Isos, Greek for equal in number. Isomerous, the same number in the successive cir- 

 cles or sets. Isostemonous, the stamens equal in number to the sepals or petals. 



Jointed, separate or separable at one or more places into pieces, 64, &c. 



Jugum (plural Juga), Latin for a pair, as of leaflets, thus Unijugate, of a single 



pair ; Bijugate, of two pairs, &c. 

 Julaceus, like a catkin or Julus. 



Keel, a projecting ridge on a surface, like the keel of a boat; the two anterior 



petals of a papilionaceous corolla, 92. 

 Keeled, furnished with a keel or sharp longitudinal ridge. 

 Kermesine, Carmine-red. 

 Kernel of the ovule and seed, 110. 

 Key, or Key-fruit, a Samara, 122. 

 Kidney-shaped, resembling the outline of a kidney, 53. 



Labellum, the odd petal in the Orchis Family. 



Labiate, same as bilabiate or two-lipped, 92. 



Labiatiflorous, having flowers with bilabiate corolla. 



Labium (plural, Labia), Latin for lip. 



Lacerate, with margin appearing as if torn. 



Laciniate, slashed ; cut into deep narrow lobes or Lacinice. 



Lactescent, producing milky juice, as does the Milkweed, &c. 



Lacteus, Latin for milk-white. 



Laeunose, full of holes or gaps. 



Lacustrine, belonging to lakes. 



Lavigate, smooth as if polished. Latin, Lmvis, smooth, as opposed to rough. 



Lageniform, gourd-shaped. 



Lagopous, Latin, hare-footed ; densely clothed with long soft hairs. 



Lamellar or Lamellate, consisting of flat plates, Lamella!. 



Lamina, a plate or blade, the blade of a leaf, &c, 49. 



Lanate, Lanose, woolly; clothed with long and soft entangled hairs. 



Lanceolate, lance-shaped, 52. 



Lanuginous, cottony or woolly. 



Latent buds, concealed or undeveloped buds, 30. 



Lateral, belonging to the side. 



Latex, the milky juice, &c, of plants, 135. 



Lax (Laxus), loose in texture, or sparse; the opposite of crowded. 



Leaf, 49. Leaf-buds, 31. 



Leaflet, one of the divisions or blades of a compound leaf, 57. 



Leaf -like, same as foliaceous. 



Leathery, of about the consistence of leather ; coriaceous. 



