acrogen

American  

[ak-ruh-juhn, -jen] / ˈæk rə dʒən, -ˌdʒɛn /

noun

Botany.

1. a flowerless plant growing and producing its reproductive structures at the apex only, as ferns and mosses.

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acrogen British  

/ ˈækrədʒən, ˌækrəˈdʒɛnɪk, əˈkrɒdʒɪnəs /

noun

1. any flowerless plant, such as a fern or moss, in which growth occurs from the tip of the main stem

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Other Word Forms

• acrogenic adjective
• acrogenous adjective
• acrogenously adverb

Etymology

Origin of acrogen

First recorded in 1835–45; acro- + -gen

Example Sentences

No such thing as a petiolate leaf occurs in acrogens, all are attached by a broad base? 

From Project Gutenberg

I know nothing of Lycopodineæ, more than they are the highest of all acrogens; and are not to be included in the same category with ferns.

From Project Gutenberg