male cone

Listing 1 - 10 from 84 for male cone

Walchianthus (male cone)
Walchianthus (male cone) Back Walchianthus cylindricus Length 8 cms Walchianthus sp. Length of the cone 3.3 cms Otovicia hypnoides (male cone) Length of the twig with cone 2.2 cms If the species to which the cone belongs, is known, the fossil gets the name of this natural species. Otovicia hypnoides (male cone) Length 2.2 cms Back
www.xs4all.nl/~steurh

Effects of gibberellin A4 + 7 and bark-ringing on cone initiation in mature Picea sitchensis grafts
... , Canada [ PDF ] [ Return to Contents ] Effects of gibberellin A4 + 7 and bark-ringing on cone initiation in mature Picea sitchensis grafts K. A. Longman (1), J. McP Dick (1), ... of male cones induced. Ringing promoted male cone production most when used alone. Treatments, singly or combined, also increased the proportion of cones that were lateral, compared with the preponderance of terminal male ...
heronpublishing.com

Cycas angulata
... , narrow, greyish leaflets arranged at a relatively low angle to the rachis, the large, subglobular male cone, and the long megasporophylls with large numbers of large seeds and a relatively short, finely ...
plantnet.rbgsyd.nsw.gov.au

Cycas brunnea
... to C. angulata in habit, the large seeds, the dark brown tomentum, the large, subglobular male cone, and the regularly finely dentate megasporophyll lamina, but distinguished from that species by the broader ...
plantnet.rbgsyd.nsw.gov.au More from this site

Cycads
... Garden, Sydney, Australia. Male cones Male plants produce male cones which are clusters of microsporophylls each bearing microsporangia containing microspores (pollen). Cycas male cones male cone with 2 microsporophylls removed ... a ring around the shoot apex. Most other cycads, however, have both male and female cones (see right). Pollination integument micropyle megasporangium archegoium female ...
scitec.uwichill.edu.bb

Practical - Gymnosperms
... male cone is short-lived and the released pollen lodges in a fissure of the megasporangium (part of the young female cone ... cone. Look at a section of a pine needle, taking note of the sunken stomata, woody hypodermis, as well as the resin ducts. Draw this cross-section. Draw also a male cone, a 1st year (young) female cone and a 2nd year (immature) female cone. Male pine cones ...
scitec.uwichill.edu.bb More from this site

Cycads UW Aberystwyth Botanic Gardens
... coast of Africa. The cycads are an ancient group of cone-bearing plants (i.e. gymnosperms). Their name derives from the ... cone consists of a rosette of sporophylls that slowly open to reveal the ovules during the summer (below left and right). A male cone (note the white pollen) can be seen on the right on the Southern African cycad Encephalartos bartii and the female cone in ...
www.aber.ac.uk

Cycad International : Katherine NT Australia
... Plants & Request Quote See Related Gallery Images Bowenia Click on image to enlarge Female Cone Male Cone Habitat Cultivation Bowenia, like Stangeria, has distinctive foliage. The two species of Bowenia, ... ripen and drop from the cone. See Individual Plants & Request Quote See Related Gallery Images Back to Top Stangeria Click on image to enlarge Female Cone Male Cone Habitat Cultivation Named for ...
www.cycadinternational.com.au

Cycad International : Katherine NT Australia
... usually short distances that the animals carry the seed. Male Cones(Image: Ceratozamia latifolia male cone) As the male cone matures, there is rapid elongation of the cone axis, causing a marked increase in length. ... back (those closest to the cone axis) to the front. Ceratozamia latifolia male cone Female Cones - The life of a female cycad cone is much longer than that of a male. Both sexes have ...
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Cycad Society SA: Encephalartos aemulans
... E. aemulans. Two to four cones are usually produced per stem. Male cones are ellipsoid at first, becoming more elongated when mature. ... is known from one population in the Vryheid district. Two old male plants were located 10km away but no further populations were found ... it's almost simmilar, densely wooly male and female cones, the lack of a visible peduncle on the male cone and the structure of the ...
www.cycadsociety.org

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