Exserted. Extending beyond (some enclosing part of the plant); said of any struc- 

 ture in respect to its position relative to another structure, such as stamens that 

 extend beyond the corolla. 



Exsiccatae. Dried plant specimens, usually in sets for sale or for subscribers, or 

 for exchange. 



Exstipulate. Without stipules. 



Extrorse. Facing outward from the axis, as the dehiscence of an anther. 



Face. That surface of an organ that is opposed to the back, usually the upper or 



inner side. 

 Falcate. Curved like a sickle; said of appendages. 

 Farinaceous. Containing starch or starchlike substance; term applied to a surface 



with a mealy or scurfy coating. See Scurfy. 

 Fascicle. Borne as though in bundles tied at base, or as though branching from a 



common base (fig. 24). 

 Fastigiate. Clustered, parallel, erect branches. 

 Faucal. Pertaining to the throat of a gamopetalous corolla. 

 Favose. Pitted in a manner to give the appearance of a honeycomb. 

 Fenestrate. With transparent areas or windowlike openings. 

 Ferruginous. Rust-colored. 

 Fertile. Said of seed-bearing fruit or flowers capable of producing seeds, or of 



pollen-bearing stamens; also applied, incorrectly, to female flowers. 

 -fid. A sufiix meaning deeply cut. 



Filament. The stalk bearing the anther, or any threadlike structure. 

 Filamentose. Having the character of a filament (fig. 182). 

 Filiform. Filament-like, long and very slender, (fig. 46). 

 Fimbriate. Lacerate into regular segments so as to appear fringed (fig. 786). 

 Fistulous (fistulose). Hollow; said of some stems or petioles, or of leaves such as 



those of the onion. 

 Flabellate, flabelliform. Fan-shaped; broadly wedge-shaped. 

 Flange. A part that spreads out like a rim. 

 Flavescent. Yellowish, becoming yellow. Flavo-: used in combinations to denote 



yellowish. 

 Flexuous. More or less zigzag or wavy (fig. 271 ) . 



Floccose. Said of pubescence which gives the impression of irregular tufts of cot- 

 ton or wool, the hairs usually loosely tangled, (fig. 785). 

 Flora. The aggregate of plants of a country or district, or a work which contains 



the enumeration of them. 

 Floral. Of or pertaining to flowers. Floral tube (or cup): a more or less elongate 



tube consisting of perianth or other floral parts. 

 Floret. One of the flowers in a close inflorescence of small flowers, such as in the 



spikelet of a grass or in the head of a member of the Compositae. 

 Floricane. The flowering cane, usually the second year's development of the pri- 



mocane, in Rubus, etc. 

 Floristic. Having to do with the composition and organization of a flora. 

 Floristics. That aspect of phytogeography that deals with taxonomic composition 



and the geographic and quantitative relations of floras. 

 Flower. An axis bearing either functional stamens or pistils or both, these either 



naked or subtended by a perianth. 

 Foliaceous. Leaflike. 

 Follicle. A fruit, usually developing from a simple pistil and dehiscing along one 



margin (fig. 449). 



1714 



