Transmutation 



triarch 



acting in sympathy ; ~ Cells = 

 TRANSFUSION -TISSUE. 



Transmuta'tion (transmuto, I shift), 

 chemical change by addition or 

 alteration of composition without 

 complete resolution into its ele- 

 ments ; ~ of Host, = LIPOXENY. 



Transovula'tae (trans, across, + 

 OVULUM), Van Tieghem's term 

 for Phanerogams furnished with 

 transitory ovules ; Transpira'tion 

 (spiratio, a breathing), the ex- 

 halation of watery vapour from 

 the stomata of plants, not mere 

 evaporation. 



Trans'port (transporto, I carry across), 

 the conveyance of assimilated sub- 

 stance from one part to another; 

 translocation. 



transver'sal (transversus, athwart), 

 lying crosswise; ~ Ax'isof Diatoms, 

 that axis which lies in the trans- 

 versal plane, cutting the per- 

 valvar (main longitudinal) axis (0. 

 Mueller) : ~ Wall, that which 

 divides the basal and median walls 

 of the proembryo of Archegoniatae, 

 at right angles into upper and 

 lower halves ; transver'san Plane, 

 that which passes through the 

 centre of a Diatom frustule verti- 

 cally to the pervalvar axis (0. 

 Mueller) ; tran'sverse, transver'sus, 

 transversa'lis, across, right and left 

 as to bract and axis, collateral ; 

 Lindley gives "broader than long" 

 as the definition of transversus ; ~ 

 Cho'risis, when two or more organs 

 instead of one appear above or 

 within another ; ~ Geot'ropism, = 

 DIAGEOTROPISM ; ~ Heliot'ropism 

 = DIAHELIOTROPISM ; <- Planes, 

 those which cut the axis of growth 

 and surface at right angles. 



trape'ziform, trapeziform' 'is (Tpa-n-efcov, 

 a figure of four unequal sides, 

 forma, shape), an unsymmetrical 

 four-sided figure, as a trapezium, 

 almost the same as rhomboid ; 

 trap'ezoid, -deus (eldos, resemb- 

 lance), like a trapezium. 



Trap-hairs, the special hairs which 

 confine insects in certain flowers 



till pollination is effected ; cf. 

 WICKER-HAIRS. 



Traps, pi. , Prison-flowers, such as 

 Aristolochia, which confine insect 

 visitors until pollination has taken 

 place. 



Traube's Cells, artificial cells formed 

 by various solutions of gelatine 

 and other colloids, which have 

 been used to explain the phe- 

 nomena of intussusception. 



traumatrop'ic (rpavp-a, a wound, 

 T/)07T7j, a turning), showing the 

 influence of wounded root-tips ; <~ 

 Cur'vature, the bending of roots in 

 consequence of injury to their tips ; 

 Traumat'ropism, Pfeffer's term for 

 the phenomena consequent on the 

 infliction of wounds on the tip of 

 a growing root. 



Tre'halase, an enzyme which hydro- 

 lizes Tre'halose, a sugar found in 

 many Fungi and stated to be 

 identical with the "Trehala" 

 (Persian Manna), a waxy excretion 

 produced by a coleopterous larva 

 to form its cocoon. 



tremel'loid (Trcmella, eI5os, resemb- 

 lance), jelly-like in substance or 

 appearance, like the genus 

 Tremella. 



Tree, a woody plant with an evident 

 trunk ; tree-like, resembling a 

 tree, but smaller ; dendroid. 



tri, in compounds, from Greek (rpfls) 

 or Latin (tres) = three or triple. 



Triachae'nium (tri, from tres, three + 

 ACHAENIUM), like a cremocarp, but 

 of three carpels ; Triadel'phia 

 (d5eX06s, a brother), a Linnean 

 order of plants with their stamens 

 in three sets ; triadel'phous, fila- 

 ments in three brotherhoods ; Tri- 

 ake'nium = TRIACHAENIUM ; trian'- 

 der = trian'drous, trian'drian (dvTjp, 

 dvdpbs, a man), having three 

 stamens ; Trian'dria, a Linnean 

 class of three-stamened plants ; 

 trian'gular, triangula'ris (anguhis, 

 an angle), with three angles ; 

 triangula'tus (Lat.), three-angled ; 

 trian'thous (&vdos, a flower), three- 

 flowered, as a peduncle ; tri' arch 



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