Pollination biology of Platanthera stricta (Orchidaceae) in Olympic National Park, Washington

Platanthera stricta Lindley is entomophilous and can produce seed via facultative self-pollination and intraracemic and interracemic pollination. Capsule production is pollinator-limited and seed set may be pollen-limited. In experimental plants capsules produced via self- and intraracemic pollinati...

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Bibliographic Details
Published in:American journal of botany 1989-08, Vol.76 (8), p.1097-1106
Main Authors: Patt, J.M. (Nelson Biological Labs, Piscataway, NJ), Merchant, M.W, Williams, D.R.E, Meeuse, B.J.D
Format: Article
Language:English
Subjects:
ANATOMIA DE LA PLANTA
ANATOMIE VEGETALE
Animal and plant ecology
Animal, plant and microbial ecology
Autoecology
Biological and medical sciences
Bumblebees
Capsules
DESARROLLO EMBRIONARIO
DEVELOPPEMENT EMBRYONNAIRE
EMBRIONES VEGETALES
EMBRYON VEGETAL
EMBRYONIC DEVELOPMENT
Embryos
Flowers
Fundamental and applied biological sciences. Psychology
INFLORESCENCE
INFLORESCENCES
INFLORESCENCIAS
Insect pollination
Insecta
Nectar
ORCHIDACEAE
PLANT ANATOMY
PLANT EMBRYOS
Plants
Plants and fungi
Platanthera stricta
POLINIZACION
POLINIZADORES
Pollinating insects
POLLINATION
POLLINATORS
POLLINISATEUR
POLLINISATION
WASHINGTON
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Summary:Platanthera stricta Lindley is entomophilous and can produce seed via facultative self-pollination and intraracemic and interracemic pollination. Capsule production is pollinator-limited and seed set may be pollen-limited. In experimental plants capsules produced via self- and intraracemic pollination contained fewer seeds with normally developed embryos than did capsules produced via interracemic pollination. The inflorescence of Platanthera stricta is fragrant and is attractive to a wide array of anthophilous insects. It is pollinated by a diverse assemblage of short-tongued insects. The primary pollinators are Eustroma fasciata B. and McD. (Lepidoptera: Geometridae), Bombus flavifrons Cresson and B. melanopygus Nylander (Hymenoptera: Apidae), an undescribed species of Greya (Lepidoptera: Prodixidae), and several species of Empis, Rhamphomyia, and Anthepiscopus longipalpis Melander (Diptera: Empididae). Small amounts of glucose are present on the raceme. The extrafloral glucose may retain small pollinators on the inflorescence until they locate the floral spur aperture.
ISSN:0002-9122
1537-2197
DOI:10.1002/j.1537-2197.1989.tb15093.x