ambisporangiate 
amphicarpogenous 
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. 
Amb‘itus (Lat. a going round), the 
outline of a figure, as of a leaf. 
ambleocar’pus (auf8ddw, to be abortive, 
kapros, fruit), when most of the 
ovules abort, a few only becoming 
perfect seeds. 
ambros‘lacus (duBpéc.os, divine food), 
possessing a strong scent of 
Ambrosia ; fragrant. 
Ambula’crum (Lat.), a walk in a 
botanic garden. 
ame‘liorating (Fr., amelioration, an 
improvement) ~ Plants, those 
bacteria which cause nodules on 
the roots of Leguminose. 
Am’ent, Ament’um (Lat. a strap), a 
catkin, a spike of flowers usually 
bracteate, andfrequently deciduous; 
amenta’ceous, -ceus (+ ceus) ament’i- 
form (forma, shape), amentif’erous 
(fero, I bear), catkin-bearing ; cat- 
kin-like; Ament’ula (diminutive) 
the so-called catkins of the male 
inflorescence in Sphagnum. 
ameris’tic (a, not, peploros, divisible) 
~ Ferns, are those whose prothalli 
being insufficiently provided with 
nutriment are destitute of meristem, 
and produce antheridia only. 
amethyst’eus, amethyst’inus (Lat.), 
the colour of amethyst, violet. 
ametoe’cious (a, not, werd, with, after, 
olxos, house), a parasite which does 
not change its host ; the reverse of 
METOECIOUS. 
Am‘ides (Am[{-monia]+ide) certain 
substances occurring in plants, 
soluble in water, diffusible, cry- 
stallizable, not coagulating on 
boiling ; those of common occur- 
rence are Asparagin, Leucin, and 
Tyrosin ; Amid’ulin, soluble starch, 
existing in small quantity in ord- 
inary starch-grains. 
Ami’doplast (Aaords, modelled), an 
error for AMYLOPLAST. 
ll 
Amito’sis (a, without, ulros, a web), 
defined as degenerate mitosis, 
when nuclear division takes place 
directly without the phenomena 
of karyokinesis ; adj. amito’tic. 
Am/modytes (dupos, sand, dvw, I sink 
in), living in sandy places ; ammo- 
ph‘ilous, -lus (¢lAew, I love), sand- 
loving. 
Ammo’nia (Ammon, the Libyan 
Jupiter, first found near his 
temple), a pungent gas; the so- 
called volatile alkali. 
Am’nion, Am‘nios (duvlos, foetal mem- 
brane), a viscous fluid which sur- 
rounds certain ovules in an early 
stage; amniot’ic Sac, = Empryo-Sac. 
amoe’boid (duoBaios, interchanging), 
applied to the jelly-like plasmodium 
of Myxogastres when in motion, 
resembling an Amoe'ba, a protean- 
shaped rhizopod; Amoeboid’eae, 
used by Gobi for the lowest forms 
of plant-life which are destitute of 
chlorophyll. 
amorph’ous, amorph'us (a, without, 
pop¢h, form), shapeless, the form 
not regular or definite ; Amorph’- 
ophyte (¢urév, a plant), a plant with 
anomalous flowers. 
Amphanth’ium + (du¢l, around, dros, 
flower), the dilated receptacle of 
an inflorescence, as in Dorstenia ; 
clinanthium ; Am’phiaster (dornp, a 
star), the combined nuclear-spindle 
and cytasters; also for the com- 
bined cytasters only (Crozier); 
amphib’ious (Bios, life), growing on 
dry land or in water equally well ; 
~Alterna'tion, the adaptation of 
organism, originally of aquatic 
habit, to subaérial conditions ; 
amphib’ryous, -yus (Bpiw, to 
sprout), growing by increase over 
the whole surface; Amphib'rya, 
Endlicher’s name for Monocotyle- 
dons; amphicarp’ic, -pous, -pus 
(kaprés, fruit), possessing two kinds 
of fruit, differing in character or 
time of ripening ; Amphicarp‘ium, 
an archegonium persisting as a 
fruit-envelope, after fertilization ; 
amphicarpog’enous (yervdw, I bring 
