香港桦木科一新种--香港鹅耳枥

摘要

报道了桦木科(Betulaceae)鹅耳枥属(Carpinus L.)一新种--香港鹅耳枥(C. insularis N. H. Xia, K. S. Pang&Y. H. Tong)。香港鹅耳枥与太鲁阁鹅耳枥(C. hebestroma Yamamoto)及多脉鹅耳枥(C. polyneura Franch.)相似，但习性灌木状，叶具13~16对侧脉，先端锐尖，边缘锯齿的芒尖较短，果苞宽半卵形或半卵形，长8~14 mm，小坚果顶端密被长柔毛且疏具树脂状腺体，与后两者易于区别。%A new species of Carpinus L. in the Betulaceae, C. insularis N. H. Xia, K. S. Pang&Y. H. Tong, is described and illustrated. The new species is similar to C. hebestroma Yamamoto and C. polyneura Franch., but differs in its shrubby habit, 13-16 pairs of lateral veins of leaves, acute leaf apex, shorter mucrones of the leaf marginal teeth, fruiting bracts 8-14 mm long, broadly semi-ovate or semi-ovate, and nutlets sparsely resinous-glandular and densely villous at apex.