ADDITIONAL ITEMS 



Acumen: A sharp, tapering point, as 

 the acumen of a leaf or of the corolla 

 keel of a leguminous plant. 



Alliaceous : Of or pertaining to the onion 

 genus (Allium) ; having the charac- 

 teristic odor and taste of that genus. 



Arillate: Having an aril; of or per- 

 taining to an aril. 



Caruncle: An outgrowth or excrescence 

 of the seed-coat at or near the hilum. 



Carunculate: Having a caruncle. 



Extrorse : Turned outward ; said es- 

 pecially of anthers that face outwards 

 from the pistil and floral axis, as the 

 extrorse anthers of lilies. 



Furf uraceous : Branny or scurfy; cov- 

 ered with a meal-like scurf or powder 

 (Latin, furfur, bran). 



Involucrate: Provided with an invo- 

 lucre, as the involucrate flowers of 

 flowering dogwood. 



Loculicidal: Said of a capsule which 

 splits (dehisces), prior to discharging 

 its seed, down the middle of the back 

 (dorsal sutures) of each carpel cell 

 (loculus), as the loculicidal pods of 

 a lily. Compare septicidal. 



Metonym: Literally, a later name. A 

 synonymous name rendered invalid by 

 the existence of an earlier, valid name 

 for the same species or other plant 

 group. Thus, Agropyron occidentalc 

 Scribner (Dec, 1900) is a metonym 

 of A. smithii Rydberg (Feb., 1900). 



Phenology: The science dealing with 

 the effects of climate on plant and 

 animal life, particularly with respect 

 to periodical phenomena such as the 

 seasonal development, budding, leaf- 

 ing, flowering and fruiting of plants, 

 etc. 



Pod: A capsule; a dry seed-vessel, es- 

 pecially if several-seeded and de- 

 hiscent. Used originally of legumes, 

 as a pea pod. 



Rhachis. See Rachis. 



Septicidal: Dividing at the partitions 

 (septa) ; said especially of fruiting 

 capsules which open (dehisce) at ma- 

 turity into the separate carpels by 

 splitting through the partitions, as 

 the septicidal capsules of Labrador- 

 tea and rhododendron. 



Septifragal: Said of capsules or pods 

 whose valves in opening (dehiscing) 

 break away from the partitions 

 ( septa ) , as the septifragal capsule of 

 the common morning-glory (Ipomoea 

 purpurea) . 



Sterigma (pi. -ta) : A stalk or support ; 

 said especially of the woody leaf- 

 bases of spruces and Douglas-fir 

 which persist on and roughen the 

 twigs, and of the stalklike supports 

 of certain reproductive cells (co- 

 nidia) of many fungi. 



Strophiole: An appendage attached to 

 the base of certain seeds. Often used 

 as a synonym for caruncle. 



U. S. GOVERNMENT PRINTING OFFICE : O — 1950 



