Submarine Pollination and Reproductive Morphology in Syringodium filiforme (Cymodoceaceae)

Biotropica ◽  
1990 ◽  
Vol 22 (3) ◽  
pp. 259 ◽  
Author(s):  
Paul Alan Cox ◽  
Thomas Elmqvist ◽  
P. B. Tomlinson
Keyword(s):  
Reproductive Morphology ◽  
Syringodium Filiforme ◽  
Submarine Pollination

scholarly journals Male sexual ornament size is positively associated with reproductive morphology and enhanced fertility in the stalk-eyed fly Teleopsis dalmanni

2008 ◽  
Vol 8 (1) ◽  
pp. 236 ◽  
Author(s):  
David W Rogers ◽  
Matthew Denniff ◽  
Tracey Chapman ◽  
Kevin Fowler ◽  
Andrew Pomiankowski
Keyword(s):  
Reproductive Morphology ◽  
Sexual Ornament

Mesocyparis borealis gen. et sp. nov.: fossil Cupressaceae from the early Tertiary of Saskatchewan, Canada

1987 ◽  
Vol 65 (11) ◽  
pp. 2338-2351 ◽  
Author(s):  
E. E. McIver ◽  
J. F. Basinger
Keyword(s):  
Northern Hemisphere ◽  
Branching Pattern ◽  
Natural Group ◽  
Classification Schemes ◽  
Cone Structure ◽  
Reproductive Morphology ◽  
Extant Genus ◽  
Early Tertiary ◽  
Seed Cone ◽  
First Time

Fossil cedar foliage of the Cupressinocladus interruptus type, with associated seeds and cones, is locally abundant in Paleocene deposits of the Ravenscrag Formation, southwestern Saskatchewan, Canada. Vegetative remains of this type occur frequently in early Tertiary plant assemblages throughout the northern hemisphere, indicating that this now extinct cedar was once widespread. For the first time this cedar can be described on the basis of both vegetative and reproductive morphology. Foliage is frond-like with a characteristic opposite branching pattern. Seed cones are globose and woody and bear four equal and decussate scales with prominent umbos. Seeds bear large, equal, semicircular wings. The fossil cedar appears most closely related to extant Cupressaceae such as Thuja, Chamaecyparis, and Heyderia. Foliage closely resembles that of Thuja, while cones are most similar to those of Chamaecyparis. The fossil differs sufficiently in foliage and seed cone structure to preclude assignment to an extant genus and is here assigned to Mesocyparis borealis gen. et sp. nov. Similarities among such extant genera as Thuja, Chamaecyparis, Heyderia, and Thujopsis and the fossil Mesocyparis borealis suggest that all may belong to a single natural group. Furthermore, this group may be more closely related to the southern hemispheric genera Libocedrus, Papuacedrus, and Austrocedrus than present classification schemes imply. Our examination of the Cupressaceae indicates that a revision of present systems of classification is required to accommodate evidence from both extant and extinct cedars.

scholarly journals Effect of competitive cues on reproductive morphology and behavioral plasticity in male fruitflies

2015 ◽  
Vol 27 (2) ◽  
pp. 452-461 ◽  
Author(s):  
Amanda Bretman ◽  
Claudia Fricke ◽  
James D. Westmancoat ◽  
Tracey Chapman
Keyword(s):  
Behavioral Plasticity ◽  
Reproductive Morphology

Reproductive Morphology of the Anchialine Shrimp Procaris ascensionis (Decapoda: Procarididae)

1988 ◽  
Vol 8 (3) ◽  
pp. 333 ◽  
Author(s):  
Bruce E. Felgenhauer ◽  
Lawrence G. Abele ◽  
Won Kim
Keyword(s):  
Reproductive Morphology
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