早田文藏為臺灣植物誌研究的奠基之父。他從 1900 年至1921 年之間，全力專注於臺灣植物的研究，且命名臺灣之維管束植物1600種新分類群。本文陳述三個主題：早田文藏的傳記，對臺灣植物誌的貢獻，以及早田氏所發表的新分類群的現今地位。第二個主題包括下列五個分項：一、前早田時期的植物相研究；二、早田氏最初十年的臺灣植物研究；三、臺灣杉研究；四、早田氏的第二個十年；五、臺灣植物誌出版後的早田工作。第三個主題乃針對早田氏對臺灣植物貢獻的初步評估。本文中所採的例子為臺灣植物圖譜第十卷的新分類群及早田氏所描述的臺灣裸子植物。

Bunzo Hayata was the founding father of the study of the flora of Taiwan. From 1900 to 1921 Taiwan’s flora was the focus of his attention. During that time he named about 1600 new taxa of vascular plants from Taiwan. Three topics are presented in this paper: a biography of Bunzo Hayata; Hayata’s contributions to the flora of Taiwan; and the current status of
Hayata’s new taxa. The second item includes five subitems: i) floristic studies of Taiwan before Hayata, ii) the first 10 years of Hayata’s study of the flora of Taiwan, iii) Taiwania, iv) the second 10 years, and v) Hayata’s works after the flora of Taiwan. The third item is the first step of the evaluation of Hayata’s contribution to the flora of Taiwan. New taxa in Icones Plantarum Formosanarum vol. 10 and the gymnosperms described by Hayata from Taiwan are exampled in this paper.