pseudostigmaticadj.
/ˌs(j)uːdə(ʊ)stɪɡˈmatɪk/, U.S. /ˌsudoʊstɪɡˈmædɪk/ 1. Botany. Designating or involving a structure resembling the stigma of a flower in form or function. rare.
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1871 Amer. Naturalist 5 278 One of the magnolias, Illicium religiosum.., produces in the centre of its flowers a group of very juicy pseudostigmatic papillæ.
1988 Ann. Missouri Bot. Garden 75 1040/2 These modern conifers with nonsaccate pollen have pseudostigmatic pollination, in which pollen grains adhere to parts of the plant near ovules, and long pollen tubes enter the ovules.
2. Zoology. Designating a sensory seta arising from a pit in the integument of various mites. Chiefly in pseudostigmatic organ. Cf. pseudostigma n.
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1884 Michael Brit. Oribatidæ I. ix. 131 Each pseudo-stigma has an organ proceeding from it..which I call a pseudo-stigmatic organ.
1924 Trans. Amer. Microsc. Soc. 43 90 Pseudostigmatic organ fairly long, with flat, widened head and pointed tip.
1989 Encycl. Brit. XIII. 922/2 Other specialized setae, known as trichobothria, pseudostigmatic organs, eupathidia, or famuli, occur only in the Acariformes.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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adj.1871