interpetiolar 



intramedullary 



by the expanded base of a petiole ; 

 (3) also applied to connate stipules 

 whicli have coalesced from two oppo- 

 site leaves ; interplacen'tal (+ Pi-a- 

 centa), between tlie placentas ; 

 applied to vascular bundles which 

 occur in the capsule; cf. ante- 

 PLACENTA.L. 



interpo'sed {hite^'positits, placed be- 

 tween) Mem'bers, those parts a\ hich 

 have arisen in a whorl subsequent to 

 its earlier members ; Interposit'ion, 

 iTiierposit'io, formation of new parts 

 between those already existing in a 

 whorl ; interpositi'vus (Lat.), inter- 

 posed. 



interprotoplaa'mic {inter, between ; -f 

 Proto PLASM) Spa'ces, gaps in the 

 reticulum of Myxogastres. 



interrup'ted {interruptus, broken or 

 separated), when any SAnnmetrical 

 arrangement is destroyed by local 

 causes ; a solution of continuity ; ■^ 

 Growth, an alternation of abundant 

 and scanty development, appearing 

 as constrictions in an organ, as a 

 fruit or tap-root; interrup'tedly 

 piii'iiate, (1) a pinnate leaf without 

 a terminal leaflet ; (2) havisig small 

 leaflets interposed with those of 

 larger size. 



intersem'ixial {inter, between ; semen, 

 seed), between or anio:iigst seeds, as 

 scales on the torus of Anihemis ; 

 interspor'al {a-Topa, a spore), in a 

 sporangium, situated between the 

 spores (Harper); interstam'inai ( + 

 staminal), placed between two sta- 

 mens ; interstam'inate is a synonym. 



Inter'stice {interslit'utm, a space be- 

 tween), small air-spaces; larger are 

 termed lucunae, still larger, air- 

 passages: interstitial Bod'ies, nin- 

 cilaginous discs occurring in certain 

 pollen-grains (Beer) ; -- Growth, the 

 theory which requires the interpo- 

 sition of new particles between the 

 older portions, instead of superficial 

 additions. 



intertrop'ic (inter, between; -f tropic), 

 relating to the torrid zone ; within 

 the tropics ; intervag'inal {vagina, 

 a sheath) Scales, squauuiles found 



between the- leaves of aquatic mono- 

 cotyledons (Gibson) ; Interve'nium 

 {vena, a vein), a portion of paren- 

 chynja between the veins of a leaf; 

 Interwea'ving (+ weavii^g), the 

 union of hyphae by growing amongst 

 each other, without cohesion ; Ger. 

 Vertiechtung ; interxy'lary ( + Xy- 

 lem), amongst the xylem elements ; 

 In'teraones ( -|- Zonk) Bessey's tenn 

 for the portion of a Diatom frustule 

 which in some cases lies between the 

 girdle and the valves. 



Intex'ine, Intex'tine {intus, within ; + 

 Extine), the inner membrane when 

 two exist in the extine, or outer 

 covering of a pollen-grain ; In'tine, 

 the innermost coat of a pollen-grain; 

 intodisca'lisj {discus, a disc), in- 

 serted within the disc of a flower. 



Intor'sio (Lat.), curling or crisping; 

 Intor'tiou = Torsion ; intor'tus 

 (Lat., twi.sted), |ractically a synonym 

 of contorted ; twisted upon itself. 



in'tra-axiriary {intra, within ; -f 

 axillary), within the axil, as 

 many leaf-buds ; intracam''bial ( + 

 cam rial), within the cambium, in- 

 ternal to it ; intracarp'ellary ( -f- 

 Carpel), within the carpels ; intra- 

 ceirular (-f Cellular), within a 

 cell ; intracutic'ular (-j- Cutiglk), 

 AAithin the cuticle ; applied to parts 

 or organs whose normal position is 

 outside ; intrafascic'ular {fasciculus, 

 a bundle), within a bundle ; intra- 

 ii'Iar {fihim, a thread), within a, 

 iilament; intraflo'ral ( + floral), 

 within the floral organs, as many 

 nectaries ; intrafolia'ceous, -cms 

 {folium, a leaf ; -f aceous), within 

 or before a leaf, ns within the axil ; 

 intralam'ellar {lamrlla, a small 

 plate), within plate-liko structures, 

 as the trama of Agarics ; intramar- 

 g'inal {munjo, a margin), placed 

 within the margin near the edge ; 

 intrama'trical {matrix, a mould), 

 inside a matrix or nidus ; Intra- 

 meabil'ity {meahilis, penetrable), the 

 capacity of protoplasm to permit 

 substances to pass into its vacuoles 

 (Janse); intrameduU'ary (-f medul- 



200 



