Access Resource - Global Biodiversity Information Facility
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153 The naming of organisms (and plant communities)<br />
pleomorphic: (1) having many forms. (2) (mycol.) of a fungus having two<br />
or more distinct phases or states in its life-cycle; see anamorph,<br />
holomorph, synanamorph, teleomorph.<br />
pleonasm: the use of generic names and specific epithets with an identical<br />
or similar meaning, either by similar word-forms (e.g. as in Bidens<br />
bidentoides), or different words identical or almost identical in<br />
meaning (e.g. Andropogon barbatus).<br />
plesiogenotype: (zool., unoff.) a specimen provisionally included in a<br />
genus at the time of description of the genus, but which was<br />
subsequently designated as the type of that genus.<br />
plesiomorph: (unoff.) a primitive character; i.e. one that has not changed in<br />
form from that seen in its ancestors.<br />
plesiotype: (1) (palaeo. zool., obsol.) a specimen which was not used in the<br />
original description of a species or subspecies, but which is used for<br />
a later redescription supplementing the description or illustration<br />
published subsequent to the original description; a hypotype; see<br />
also epitype. (2) (zool., unoff.) a specimen related to the type<br />
species of a genus-group name but from another biological province<br />
or geological formation. (3) (zool., unoff.) a figured or described<br />
specimen which has been compared with the type specimen or<br />
original figure. (4) (zool., unoff.) a specimen identified by a later<br />
author as the same as a type.<br />
pliogenotype, [pliogenotyp]: (zool., unoff.) the type of a generic name<br />
which is a synonym of an earlier generic name.<br />
pluviotype: (zool., unoff.) a type specimen damaged in a flood and<br />
encrusted in silt (!).<br />
poecilomorph: (palaeo., unoff., obsol.) proposed as a designation for a<br />
"form-variety".<br />
pollutotype: (zool., unoff.) a type so encrusted or damaged by pollutants<br />
that it is no longer recognizable (!).<br />
polybasic: (zool., unoff.) of a genus-group name, one which had several<br />
species included within it when first published; cfr monobasic.<br />
polybrid: (cult. pl.) a group name for a number of hybrids with the same<br />
parental genera, species, or varieties.