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male cones

Listing 1 - 10 from 89 for male cones

Florida Coonties and Atala Butterflies
... male cones will grow from one individual plant. The sex of young plants cannot be determined until the cones form on the plant. Thin male cones are 3 to 7 inches tall and produce pollen. Upright female cones are ... male and female cones may not be receptive at the same time. Successful germination is accomplished by collecting the crumbled female cones. ...
edis.ifas.ufl.edu

Association of Societies for Growing Australian Plants - Photo Gallery
... integrifolia Macadamia Photo: Geoff Warn Macropidia fuliginosa Black kangaroo paw Macrozamia communis Fruit Macrozamia fawcettii Male cones Photo: Allan Harris Melaleuca diosmatifolia Rosy paperbark Melaleuca fulgens Scarlet honey myrtle Melaleuca huegelii Chenille ...
farrer.riv.csu.edu.au

Fir, Pine or Spruce - Which Do I Have?
... conditions and the planting site. Cones Cones are made up of scales ... cones I've been discussing are the female reproductive portions of the tree. The male cones are formed in the spring near the branch tips and are often mistaken for reddish buds. These cones are short-lived. Female cones ...
gardenline.usask.ca

Tree Physiology, Volume 6, 1990: Contents
... . Simmons and J. Michael Kelly Tree Physiology 6:105117 [ Summary ] [ Full Text ] Influence of male cones on early season vegetative growth of Pinus contorta trees J. McP. Dick, P. G. Jarvis ...
heronpublishing.com

Effects of gibberellin A4 + 7 and bark-ringing on cone initiation in mature Picea sitchensis grafts
... 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 cones ...
heronpublishing.com
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Order Ephederales
... : http://online.anu.edu.au/Forestry/teaching/t6/bd.htm Left: Twigs with male cones. Right: Twigs with female cones Credit: http://www.rt66.com/hrbmoore/Images/ New/Ephedra_nevadensis-1.jpg Photos by ...
home.manhattan.edu

The Cycad Pages
... , with coloured or transparent, unbranched hairs. Microsporophylls: spirally orthostichous, aggregated into male cones and each with a simple, peltate sterile apex, which is not ... undersurface. Microsporangia opening by slits. Pollen cymbiform, monosulcate. Male cones stalked, ovoid. Megasporophylls: spirally orthostichous, aggregated into female cones. Sporophylls simple, with a dilated peltate apex ...
plantnet.rbgsyd.nsw.gov.au

The Cycad Pages
... unbranched, transparent and coloured hairs. Microsporophylls: spirally orthostichous, aggregated into usually stalked male cones and each with a faceted sterile apex bearing two distinct, spreading ... cymbiform, monosulcate. Megasporophylls: spirally orthostichous, aggregated into stalked or sessile female cones. Sporophylls simple, appearing peltate with a hexagonal, faceted dilated apex bearing ...
plantnet.rbgsyd.nsw.gov.au
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Cycads
... Male cones Male plants produce male cones which are clusters of microsporophylls each bearing microsporangia containing microspores (pollen). Cycas male cones male ...
scitec.uwichill.edu.bb

Practical - Gymnosperms
... male cones. The megasporophylls, on the other hand, are another matter. In some cycads such as Cycas circinalis, the Sago 'palm', the megasporophylls are not grouped into cones ... cones but all the plants in Barbados are female so there will be no cones available for you to examine in the lab!! The photo at left of male cones ...
scitec.uwichill.edu.bb
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