Armilla 



A DICTIONARY 



Ascus 



ARMILLA, an annulus in the 

 form of a plaited frill sus- 

 pended from the top of the 

 stipe below the cap in certain 

 mushrooms. 



AROMA, a pleasant characteristic 

 odor. 



AROMATIC, possessing aroma, 

 especially if spicy. • 



ARRECT', directed upward from 

 an inclined base, as the pods 

 of milkweed. (Asclepias.) 



ARROW HEADED, see Sagit- 

 tate. 



AR'ROW-SHAPED, see Sagit- 

 tate. 



AR'THdNOID, resembling the 

 apothecium of the genus Ar- 

 thouia in lichens. 



AR'THROSPORE, used mainly in 

 bacteria for a spore formed by 

 segmentation, as opposed to 

 Endospore. 



ARTHROSTERIG'MA (pi. Arthro- 

 sterlg'mata), a jointed sterigma 

 in many lichens, composed of 

 a row of cells from each of 

 which spores are abstricted. 



ARTICULATE, jointed; articu- 

 lated. 



ARTICULATED, see Articu- 

 late. 



ARTtCULA'TION, (1) a node, 

 joint, septum, or separable 

 place; (2) one of the segments 

 so marked off or separated. 



ArtICULUS, formerly used both 

 for node and internode. 



ARTIFICIAL SYSTEM, a system 

 "of classification based on one 

 or a few features only, and not 

 intended to show true relation- 

 ship, as that of Linnaeus. 



ArUndInA'CEC-Us, reed-like. 



ASCEND'ENT, see Ascending. 



AsgEND'lNG, rising obliquely, 

 or curving upwards from near 

 the base, as the stems of 



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Stellaria or the branches of 

 Norway spruce; adscendent; 

 ascendent: assurgent; adsurg- 

 ent. Said of ovules which 

 are attached to the middle por- 

 tion of the placenta or sides 

 of the ovary and are directed 

 upward. Also, directed up- 

 ward in any manner in con- 

 trast to descending, as the 

 ascending axis. 



AsgEND'lNG AxIS„the stem. 



Ascending m£tAmor'pho 



Sis, see Progressive Meta* 

 morphosis. 



As'Cl, pi., see Ascus. 



ASCLD'IA, pi., seeAsciDiuM. 



AsclD'lFdRM, ascidium- shaped. 



AsglD'lUM (pi. As^id'Ia), a hollow 

 pitcher-shaped leaf, like that of 

 Sarracenia. 



AsclF'EROUS, see Ascophorous. 



Asgl^'EROUS, see Ascogenous. 



As'COCARP, the sporocarp of 

 Ascomyeetes. See Apothe- 

 cium, Perithecium, and 

 Cleistocarp. 



ASCOG'ENOUS, producing asci; 

 ascigerous. 



AS'COGONE, see Ascogonium. 



ASCOGO'NlUM, the carpogonium, 

 or female organ in Ascomy- 

 eetes before fertilization. 



AS'COPHORE, the ascus-bearing 

 layer of hyphoe lining an asco- 

 carp. 



AscdPH'OROUS, ascus-bearing; 

 asciferous. Compare Ascoge- 

 nous. 



AS'COSPORE, a spore produced 

 in an ascus. Often inappro- 

 priately called sporidium or 

 sporule. 



ASCtS (pi As'91), one of the char- 

 acteristic spore-cases of Asco- 

 myeetes borne in an ascocarp. 

 It consists of an enlarged 

 terminal cell containing free 



