By Robert J. Gustafson, Derral R. Herbst, Philip W. Rundel
ISBN-10: 082483710X
ISBN-13: 9780824837105
Hawaiian vegetation has been written with either the layperson attracted to Hawai'i's normal background and plants in brain. as well as major textual content describing landforms and plants, the evolution of Hawaiian flowers, and the conservation of local species, the publication contains nearly 875 colour photos illustrating approximately two-thirds of local Hawaiian plant species in addition to a concise description of every genus and species proven. The paintings can be utilized both as a stand-alone reference or as a better half to the two-volume guide of the Flowering crops of Hawai'i.
Learning extra approximately threatened and endangered crops is key to maintaining them, and there's no extra endangered plant life on the planet this day than that of the Hawaiian Islands. outstanding species complexes corresponding to the silverswords and the extraordinary lobeliads symbolize detailed tales of adaptive radiation that make the Hawai'i a residing laboratory for evolution. Public appreciation for Hawaiian biodiversity calls for outreach and schooling that may make sure the long run conservation of this wealthy background, and Hawaiian plants has been designed to aid fill that want.
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Additional info for Hawaiian Plant Life: Vegetation and Flora
Example text
It has been suggested that these prickles evolved to reduce herbivory by now extinct flightless birds that once occurred in the Hawaiian Islands. The birds that might well have played this role were 4 species of flightless geeselike ducks, known as moa nalo, that once occurred widely. 11╇ Prickles on the stem of Cyanea horrida It has also been hypothesized that heterophylly in species of Cyanea—that is, species where the morphology of juvenile leaves is quite different from that of adult leaves—also represents an adaptation to lower herbivory by visually orienting flightless birds.
6╇ It seems logical that colonizing lineages among the ferns and fern allies have not developed adaptive radiations to the degree seen in flowering plants. The ease of movement of small wind-dispersed fern spores limits possibilities for genetic divergence between populations—and thus speciation. Approximately 60% of Hawaiian ferns and fern allies are present on all 6 of the largest islands, excluding Ni‘ihau and Kaho‘olawe, demonstrating the relatively strong dispersal ability of fern spores.
The next largest lineages arising from single colonizers are the endemic genera of Hawaiian mints (Lamiaceae), Cyrtandra (Gesneriaceae), Melicope and Platydesma (Rubiaceae), and Schiedea (Caryophyllaceae). There are 5 Hawaiian genera with 30 or more species. Leading this group is Cyanea (Campanulaceae) with 79 species, followed by Cyrtandra (Gesneriaceae) with 59 species, Melicope (Rutaceae) with 48 species, Schiedea (Caryophyllaceae) with 34 species, and Phyllostegia (Lamiaceae) with 32 species.
Hawaiian Plant Life: Vegetation and Flora by Robert J. Gustafson, Derral R. Herbst, Philip W. Rundel
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