Amalthea 



Amidet 



a calyx which does not become 

 fleshy, as Alchevxilla, and Sangiii- 

 sorba. 



Aman'itin (from Ainanita, Dilh ), (1) 

 the red pigment of the pileus of 

 the Fly-Agaric, (2) the poisonous 

 alkaloid from the same, also written 

 Aman'itine. 



Amath'ad (i/io0os, sandy soil + ad), 

 a sand-hilt plant ; Amathi'um, a 

 sand-hill formation ; amathoc'clos 

 {i.e. = amathoc'ola), a sandy 

 dwelling plant (Clements) ; amatho- 

 ph'ilus {(piKeoD, I love), dwelling on 

 sand-hills or sandy plains ; Amatho- 

 phy'ta {(pvrhy, a plant), sand-plain 

 plants, 



Am'ber, the English name of Suc- 

 cinite, 



ambig'enus {umbo, both ; gemis, off- 

 spring), applied to a perianth whose 

 exterior is calycine, and interior 

 corolline, as Nymphaea. 



ambiguiflor'us {ambiguus, doubtful ; 

 flos, Jioris, flower), applied by 

 Cassini to flowers of an indetermin- 

 ate form ; ambig'uous, (1) said of 

 an organ when its origin is un- 

 certain, thus the dissepiments of an 

 orange may belong to the axis or 

 the paries ; (2) of a plant when its 

 position is doubtful, 



ambip'arous, -rus, {umbo, both ; pario, 

 I bring forth), producing two kinds, 

 as when a bud contains both flowers 

 and leaves, as the Horse-chestnut ; 

 ambisporang'iate ( + Sporangium), 

 hermaphrodite flowers, otherwise 

 macro- and micro-sporangiate, that 

 is, bearing ovules and pollen-sacs ; 



Cf. AMl'HISrORANGIATE. 



Amb'ilus (Lat., a going round), 

 the outline of a figiire, as of a 

 loaf. 



ambleocar'pus (afjLfix6ofxai, to be abor- 

 tive ; Kap-rrhs, fruii), when most of 

 the ovules abort, a few only becom- 

 ing perfect seeds. 



Ambro'sia {afi$p6<ria, divine food), 

 the mycelial or oidial stage of a 

 Fungus, probably of some Asco- 

 mycete, found in the burrows of 

 some beetles in fruit-trees, and 



believed to be used as food ; am- 

 bros'iacus, possessing a strong scent 

 of Ambrosia ; fragrant, 



Ambula'crum (Lat.), a walk laid out 

 in a botanic garden, 



ameliorating ( Fr, , atrUlioration, an im- 

 provement) '-' Plants, those bacteria 

 which cause nodules on the roots of 

 Leguminosae. 



Am'ent, Ament'um (Lat., a strap), a 

 catkin, a spik^e of flowers usually 

 bracteate, and frequently deciduous ; 

 amenta'ceous, -cev^ ( -f ceus), amen- 

 t'iform {forma, shape),- amenti- 

 f'erous {fero, I bear), catkin-bear- 

 ing ; catkin-like ; Ameiitiflo'rae 

 {fios, Jioris,a. flower), wind- fertilized, 

 catkin-bearing plants, as the hazel 

 or willow (Delpino). 



Ament'ula (diminutive), the so-called 

 catkins of the male inflorescence in 

 Sphagnum. 



ameris'tic' (o, not ; fxepiaros, divisible) 

 ~ Ferns, are those whose prothalli 

 being insufficiently provided with 

 nutriment are destitute of meristem, 

 and produce antheridia only. 



Am'erosporae (a, without; fifpos, a part^ 

 + Spora), applied to pluricellular 

 spores, subdivided into Allanto- 

 sporae, Hyalosporae, Phaeo- 

 sporae (Traverso), 



ametab'olous, ametab'olits (o, without; 

 fiCTa^oKij, change), used of species of 

 Equisettim, where fertile shoTits die 

 away after dispersal of the spores 

 (Goebel), 



amethyst'eus, amethyst 'inns (Lat,), 

 the colour of amethyst, violet. 



ametoe'cions (o, not; /uera, with, after; 

 ol/cos,' house), a parasite which does 

 not change its host ; the reverse of 



METOECIOUS. 



amicron'ic (a, not ; /juKphs, small), ap- 

 plied to jiarticles beyond the powers 

 of the microscope. 



Am'idases ( -t- Amide), enzymes occur- 

 ring in the mycelium of Aspergillus, 

 which split ott' ammonia from urea, 

 etc., but are not proteolytic (Shibata) ; 

 and diffuse into the air, such as the 

 hawthorn and elder. 



Amides (Am[-monia] + ide), certain 



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