pseudocone

  Term used by some cycadologists to refer to the cluster of leaf-like megasporophylls in Cycas.

Expanded glossary of Cycad terms . 2014.

Look at other dictionaries:

  • pseudocone — I. “+ˌ adjective Etymology: pseud + cone : being an insect eye in which the crystalline cone is formed by a vitreous secretion of the cone cells compare eucone II. noun : a pseudocone eye …   Useful english dictionary

  • pseudocone — adj. [Gr. pseudos, false; konas, cone] (ARTHROPODA: Insecta) In certain Diptera and Odonata, a condition where the cone of the ommatidium is liquid filled or gelatinous rather than a crystalline cone (eucone condition) …   Dictionary of invertebrate zoology

  • pseudocone — pseu·do·cone …   English syllables

  • Pineapple gall — The Pineapple or Pseudocone gall Darlington, Arnold (1975) The Pocket Encyclopaedia of Plant Galls in Colour. Pub. Blandford Press. Poole. ISBN 0 7137 0748 8. P. 114.] develops as a chemically induced distortion of up to a hundred pine needles,… …   Wikipedia

  • Ommatidium — Ommatidium: A – cornea, B – crystalline cone, C D – pigment cells, E – rhabdom, F – photoreceptor cells, G – membrana fenestrata, H – optic nerve The compound eyes of insects, mantis shrimp and millipedes[1] are composed of units called ommatidia …   Wikipedia

  • Conifer cone — Mature female Lodgepole Pine cone An Aleppo Pine cone ( …   Wikipedia

  • Picea abies — Norway Spruce Norway Spruce Conservation status …   Wikipedia

  • Gall — For other uses, see Gall (disambiguation). Kalanchoë infected with crown gall using Agrobacterium tumefaciens …   Wikipedia

  • Хрусталик — (lens crystallina), или линза преломляющее тело в глазу, имеющее у различных форм весьма различное морфологическое значение. Иногда X. вовсе отсутствует, напр. в глазу большинства медуз, а также и в сравнительно высокоорганизованном глазу… …   Энциклопедический словарь Ф.А. Брокгауза и И.А. Ефрона

  • acone eye — (ARTHROPODA: Insecta) A condition (possibly primitive) of a compound eye in which the ommatidium is lacking a crystalline cone, but is modified in the form of elongated transparent bodies called Semper cells; see pseudocone, eucone, exocone …   Dictionary of invertebrate zoology

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