thyroid 



tmem^ 



resemblance), shield-likej peltiform 

 (Heinig). 

 Thyrse, Thyr'sus (Lat., the Bacchic 

 staff), a mixed inflorescence, a 

 contracted or ovate jianicle, the 

 main axis indeterminate, but the 

 secondary and ultimate axes cy- 

 mose ; tliyraif'erous, -rus, {fero, I 

 bear), bearing a thyrse ; thyrsiflor'us 

 {J!os, floris, a flower), the flowers 

 in a thyrse ; thyr'siform {forma, 

 shape), shaped like a thyrse ; 

 thyr'soid {flhos, resemblance), like 

 a thyrsus ; Thyr'sula, the little 

 cyme which is borne by most 

 Labiates in the axil of the leaves. 



Tige, pr. teej (Fr., tige), stem ; 

 Tig'el = Tigelle', Tigd'la, Tigel'- 

 lum, Tigel'lus, a miniature or 

 initial stem, used for (a) caulicle 

 or hypocotyl, {b) plunmle ; tigella'- 

 tU8+, (1) having a short stalk, as 

 the plunmle of the bean ; (2) when 

 the stalk is well marked ; Tigel'- 

 lula +, a short tilament or stalk 

 observed in the truflle ; tigellula'ris, 

 vascular. 



Tig'line, the acrid principle in the 

 seeds of Croton Tiglium, Linn. 



Til'ler, a sucker or branch from the 

 bottom of the stem ; til'lering, 

 throwing out stems from the base 

 of tlie stem; Til'low (Crozier) = 

 Tiller. 



Tim'ber-line, the upper limit of tree 

 vegetation on the mountains. 



Time, cf. Exposition '~, Presenta'- 

 tion '~, Reac'tion ~. 



tinctor'ious, -rius, tinctor'ial (Lat., 

 pertaining to d3-eing), used for dye- 

 ing, imprinting colour. 



Tin'der-fung'us, Polyporus fomentarixis 

 Fr. 



Tinoleu'cite (reiVoj, I extend, + Leu- 

 cite), Van Tieghem's term for direct- 

 ing spheres, the centrosomes. 



Tip, used by Withering fur Anther. 



Tiph'ad {'r1<pos, pool, + ad), a pond 

 plant ; Tiphi'um, a pond formation ; 

 tiphoph'ilus (0iAew, I love), pond- 

 loving ; Tiphophy'ta {^vrhv, a plant), 

 pond plants (Clements). 



Ti'rad (T6ipw, I rub away, + ad), "a 



bad land plant " ; Tiri'um, a bad 

 land formation (Clements). 

 Tis'sue, the texture or material formed 

 by the union of cells of similar origin 

 and character, and mutually depend- 

 ent ; tissues united form systems, 

 these again form organs ; '~' Cord, 

 central cord (Crozier) ; aq'ueous --' , 

 a form of hypoderma, consisting of 

 thin-walled parenchyma wanting 

 chloroplastids, but containing much 

 watery sap; Conjun'ctive '~, ground 

 tissue arising from the plerome or 

 young stele ; cutic'ularized '-, modi- 

 iied cell-walls, as epi(Jermis and 

 periderm; embryonic --' = Meri- 

 s rEM ; ex'tra-ste'lar -- ; see Ground 

 Tissue ; false -- = spurious ^ ; 

 glan'dular '^ , composed of secreting 

 cells or glands ; Ground '^ , funda- 

 mental tissue, neither vascular nor 

 epidermal, either within or without 

 the stele; heteroge'neous '-, con- 

 sisting of various kinds of cells ; 

 homoge'neous -^ , when the cells are 

 uniform; intra- ste'lar^ = Conjunc- 

 tive-tissue; limitary -', epidermal 

 tissue ; parenchy'matous -^ , (a) thin- 

 walled, as pith cells; (6) thick- 

 walled, as collenchyma ; per'manent 

 '-, adult tissue; pri'mary '^ , first 

 formed tissue ; prosenchy'matoui '-' , 

 woody tissue ; sclerenchy'matous -^ , 

 thickened or hardened, as fibres or 

 sclereids; sec'ondary '~, resulting 

 from growth from continuous me- 

 ristematic activity; sieve --', of 

 long articulated tubes, communicat- 

 ing by means of their sieve-plates 

 in their walls ; spu'rious <^, an 

 approach to a tissue, by hyphae 

 massing into a felt, or their apices 

 forming a collective apical growing 

 point; tegumen'tary ^, the ex- 

 ternal epidermal layer ; tra'cheal -^ , 

 composed of tracheids, especially 

 adapted for the conveyance of liquids; 

 vas'cular -^ , the components of the 

 vascular system of a plant. 

 Tjemo'ro-for'est, or aphyllous-forest; 

 formed by Casxoarina in Eastern 

 Java and the Sunda Isles. 

 Tme'ma {rfxruxa, section), a cell rup- 



385 



