tomentulose 



trabecular 



wool, or short hairs ; toraen'tulose, 

 slightly tomentose ; Tomen'tum 

 (Lat., cushioning), (1) pubescence; 

 (2) t mycelium. 



tomip'arous (rbw, a cutting, pario, 

 I produce), Bory applies the term 

 to all plants which reproduce 

 themselves by fission ; Tom'iange 

 (ayyelov, a vessel), the organ which 

 produces TOMIES ; Tom'ie, pi. 

 Tom'ies, Van Tieghem's name for 

 asexual reproductive bodies which 

 are neither SPORES nor DIODES, 

 living cells which do not arise from 

 an adult stage, but produce an 

 adult individual direct ; Tom'iogone 

 (70VOS, offspring), the organ which 

 produces TOMIES. 



Tongue = LIGULE ; tongue-shaped, 

 long, nearly flat, fleshy and 

 rounded at the tip, as the leaves 

 of some Aloes. 



Ton'oplast (rbvos, strain, 7rXa<rros, 

 moulded), De Vries's term for a 

 vacuolar living membrane, con- 

 trolling the pressure of the cell- 

 sap ; Touotax'is (rafts, order), 

 sensitiveness to osmotic variation 

 (Beyerinck). 



Tooth, see TEETH ; toothed, dentate ; 

 Tooth'let, a small or secondary 

 tooth ; tooth'letted, finely denticu- 

 late (Lindley). 



top-shaped, inversely conical. 



Topia'ria, pi. (Lat.), ornamental gar- 

 dening ; topia'rian, top'iary, relat- 

 ing to the same, especially used of 

 trees and shrubs clipped into formal 

 shapes. 



top'ical (roirtKos, local), local, confined 

 to a limited area. 



topha'ceous, = TOFACEUS (2). 



Tor'als (torus, a bed), Bessey's pro- 

 posed name for THALAMIFLORAE. 



torfa'ceus, turfo'sus (Henslow), grow- 

 ing in bogs. 



torn, when marginal incisions are 

 deep and irregular. 



to'rose, toro'sus (Lat. , fleshy, brawny), 

 cylindric, with contractions or 

 swellings at intervals ; the diminu- 

 tive is torulo'sus. 



Tor'sion, a spiral twisting or bend- 



ing ; a'pical <~, lateral displace- 

 ment of the segments of the apical 

 cell in certain Mosses, resulting in 

 the twisting of the resultant stem 

 (Correns); antid'romous ~ , against 

 the direction of twining, as may 

 be caused by friction of support ; 

 homod'romous ~ ,in the same direc- 

 tion as twining, the internode 

 gyrating in the same way ; Torsion- 

 sym'metry( + SYMMETRY), Schuett's 

 term for those Diatoms whose valves 

 are twisted ; torsi' vus (Mod. Lat., 

 squeezed out), spirally twisted, not 

 quite as in contorted, there being no 

 obliquity in the insertion, as in the 

 petals of Orchis ; tor'tilis (Lat., 

 twisted), susceptible of twisting ; 

 tor'tus, twisted ; tor'tuous, tor- 

 tuo'sus, bent or twisted in different 

 directions. 



torula'ceous ( + aceous) ; tor'uloid, 

 resembling the genus Torula, Pers. 



tor'ulose, torulo'sus (torulus, muscular 

 part), cylindric, with swollen 

 portions at intervals, somewhat 

 moniliform ; <~ Bud' ding, increasing 

 by budding as yeast. 



Tor'us (Lat., a bed), the receptacle 

 of a flower, that portion of the 

 axis on which the parts of the 

 flower are inserted; when elongated 

 it becomes the GONOPHORE and 

 GYNOPHORE ; ~ of Pits, the thicken- 

 ing of the closing membrane in 

 bordered pits. 



Touch'wood, decayed wood due to 

 fungus-mycelium, formerly used 

 as tinder. 



Tox'in (Tot-iKoi>, poison), a poisonous 

 secretion by certain Fungi, which 

 kills the cells of the host-plant and 

 facilitates parasitism. 



Trabec'ula, pi. Trabec'ulae (Lat., a 

 little beam), a cross-bar, '(1) the 

 transverse bars of the teeth of the 

 peristome in Mosses ; (2) plates of 

 tissue forming partial septa in the 

 microsporangium of Isoetes ; (3) the 

 lacunar tissue in Selaginella, be- 

 tween the cortex and the central 

 bundle ; trabec'ular, like a cross- 

 bar; ~ Duct, <~ Ves'sel, a vessel 



272 



