<国立科博専報>秋田県における普通植物の分布

概要

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Distribution of some popular and weedy plants in Akita prefecture, north Honshu, was investigated by means of questionaire distributed to local botanists as well as by the field observation of the author. Fifteen target species were selected from the point that they are easily identified by any person regardless of his or her botanical background. The information of filled questionaire was transfered to a data file of mini-computer (TOSBAC40C) through Japanese-language word-processor (OASYS 100) after dueprocess. A FORTRAN program KENMAP was prepared to produce prefecture-wise distribution map with line-printer. It offers speedy and continuous but less detailed output of distribution maps substituting more clear but slow XY-protter output by KLIPS (KANAI 1976,1979). Of total 15 species, Polygonum cuspidatum, Plantago asiatica, Humulus japonicus, Geranium nepalense, Trifolium repens, Petasites japonicus, Macleaya cordata, Commelina communis and Houttuynia cordata are quite popular over the prefecture. Distribution of Trifolium repens is artificial as the species is utilized as pasture and ground cover. Macleaya cordata seems to be absent from coast region. Veronica persica, Cayratia japonica, Portulaca oleracea, Capsella bursa-pastoris and Indigofera pseudo-tinctoria are less popular and restricted to plain region. Especially, the lattermost species is nearly restricted to coast region.
国立科学博物館の論文