phyllotacticaladj.
/ˌfɪlə(ʊ)ˈtaktᵻkl/, U.S. /ˌfɪləˈtæktək(ə)l/ Botany. Now rare.
= phyllotactic adj.
ΘΚΠ
the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > belonging to phyllotaxy
phyllotactic1857
phyllotactical1888
1888 Proc. Royal Soc. 1887–8 43 296 He next pointed out the phyllotactical origin of the number of parts in floral whorls.
1888 G. Henslow Origin Floral Struct. xxxii. 339 From phyllotactical reasons, it is clear that the origin and arrangements of the floral members are entirely foliar.
1942 Bull. Torrey Bot. Club 69 634 The Fibonacci series of Schimper and Braun has not proven inclusive of all phyllotactical patterns known.
2004 Plant, Cell & Environment 27 686/1 In order to produce a good packing, it is good heuristics to arrange the successive leaf buds according to the phyllotactical spiral.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
<
adj.1888