578 



GLOSSARY. 



Innovations, in G-ramineffi, barren 

 shoots. 



Inserted, attached to or growing 

 upon. 



Interior, the region of the Great 

 Californian Valley (Sacramento 

 and San Joaquin); interior 

 plains, the plains of the Sac- 

 ramento and San Joaquin Val- 

 leys; interior hills, the foothills 

 on the eastern and western 

 sides of the Great Valley. 



Interior plants, found away from 

 the sea; usually meaning the 

 great Californian Valley or 

 further inland, or at least the 

 inner Coast Ranges. 



Inter-node, the portion of the 

 stem between two nodes. 



Interrupted, not continuous and 

 regular. 



Introrse, turned inward. 



Involuoel, a secondary involucre, 

 as that of an umbellet; a 

 circle of bractlets. 



Involucrate, pro%'ided with an 

 involucre. 



Involucre, a circle of bracts sub- 

 tending a flower cluster. 



Involute, rolled inwards from 

 both sides. 



Irregular, the parts not of the 

 same size and shape. 



Keel, St longitudinal central ridge 

 on the back of an organ, like 

 the keel of a boat; the two 

 lower petals of a pea-like 

 flower which are joined into 

 a keel-like body. 



Lacerated, irregularly but not 

 necessarily deeply cleft or torn. 



Laciniate, cut or slashed into 

 narrow divisions. 



Lamellate, composed of thin 

 plates. 



Lax, loose. 



Leaflet, one of the divisions of ■ 

 a compound leaf. 



Legume, a 1-celled seed vessel, 



composed of a single carpel, 

 which dehisces by both the 

 ventral and dorsal suture into 

 two valves. 



Lenticels, roundish spots on young 

 bark which function as stomata. 



Lenticular, shaped like a lens. 



Ligneous, hard and woody. 



Ligule, strap-shaped body such as 

 the ray in the Sunflower Fam- 

 ily; in Graminese the exserted 

 portion of the hyaline mem- 

 brane lining the sheath. 



Limb, a border, the spreading 

 part of a sympetalous corolla. 



Line, ^^ of an inch. 



Linear, very narrow, with par- 

 allel sides; 4 or 5 times as long 

 as broad, or more. 



lAp, one of the two divisions of a 

 bilabiate corolla or calyx. See 

 Bilabiate. 



Littoral, growing near or under 

 the influence of the sea. 



Lobe, a division of an organ, 

 especially one which is rounded; 

 leaf lobes are usually not deep; 

 leaves may be lobed, parted or 

 divided depending upon the 

 depth of division. See Parted 

 and Divided. 



Loculicidal, a capsule splitting 

 longitudinally into the backs 

 of the cells. 



Lodicules in Crraminece, minute 

 hyaline scale-like organs at the 

 base of the stamens, whose 

 function is the opening of the 

 floral envelope at anthesis. 



Lyrate, shaped like » lyre, the 

 terminal lobe of the leaf large 

 and rounded with the .lower 

 pairs smaller. 



Mammmform, breast-shaped or 

 bearing breast^shaped promi- 

 nences. 



Marceseent, withering but per- 

 sistent, not falling off. 



