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Arbutus menziesii, Pacific madrone. This cut away view reveals
the internal arrangement typical of the urceolate flowers of the family. Insects probing
into the open end of the corolla contact the appendages on the anthers and this causes the
pollen to sift out of the terminal pores onto the body of the visitor. The pistil is
clearly visible in the center of the sectioned flower. |
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Arctostaphylos sp., manzanita. |
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Cassiope tetragona, white or mountain heather. |
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Erica sp., heather. |
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Gaultheria shallon, salal, 1-3 - vic Newport, OR,
2002, 4 - vic Mt. Rainier, WA. |
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Kalmiopsis "fragrans,"
fragrant kalmiopsis, vic. Umpqua, OR, May, 2004. |
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Ledum groenlandicum, Labrador tea.
Wisconsin, June, 1969. |
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Phyllodoce empetriformis, pink mountain
heath. 1 - vic. Vancouver, BC, 2 - Mt. Rainer, WA. |
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Rhododendron ferrugineum. |
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Rhododendron indicum, azalea. This species has somewhat
zygomorphic flowers. The terminal anther pores are barely visible in this photo. |
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Rhododendron sp. The calyx in this genus is commonly very
reduced. It is just visible as a yellowish rim at the base of the ovary of the immature
fruit at the upper left in the first photo. The tubular base and spreading lobes of the corolla of the open
flower are clearly visible, as are the 10 stamens, each with terminal pores releasing
white pollen from the orange anthers. The greenish style with its enlarged stigma is also
exserted from the corolla. |
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Rhododendron sp., Corvallis, OR, 2002. |
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Rhododendron sp., Lyon Arboretum, O'ahu. |
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Rhododendron sp. |
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Vaccinium calycinum, 'ohelo, 'ohelo kau la'au,
blueberry, Hawai'i, endemic. |
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Vaccinium corymbosum, blueberry, Corvallis, OR, July
2003. |
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Vaccinium dentatum, 'ohelo, blueberry, endemic. |
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Vaccinium ovalifolium, tall blue huckleberry, vic
Mt. Hood, OR, 2002. |
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Vaccinium reticulatum, 'ohelo. The inferior
ovaries that are typical of this genus can be seen in this endemic
Hawaiian species. The inverted urn-shaped or urceolate flowers illustrated
here are common in several genera of the family. |
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Styphelia tameiameiae, Epacridaceae, pukiawe, endemic. |
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Chimaphila umbellata, wintergreen. This very close relative of
the Ericaceae exhibits an identical floral construction. Note the five-parted corolla and
the ten stamens, each with clearly visible terminal anther pores. The ovary is 5-lobed and
5-carpelled as is common in Ericaceae. |
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Monotropa uniflora, indian pipe. This species lacks chlorophyll
and is essentially devoid of any coloration. It forms an
association with a fungus in order to survive. |
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Pterospora andromedea, pine drops. |
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Pyrola sp. One of the mycotrophic species in the family with
little or no chlorophyll. |
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Sarcodes sanguinea. Note the lack of chlorophyll in this
mycotrophic species. |