Morfologia
Palavras-chave: anatomia vegetal, folha, Huperzia, Lycopodiaceae, Pteridophyta
ABSTRACT
Lycopodiaceae belongs to the Lycopsida, which autapomorphy is the presence of microphyllous leaves. It was studied 10 species, and seven are endemic to Brazil: the terrestrials Huperzia christii (Silveira) Holub, H. friburgensis (Nessel) B. Øllg., H. hemleri (Nessel) B. Øllg., H. intermedia Trevis., H. reflexa (Lam.) Trevis. and H. treitubensis (Silveira) B. Øllg.; the epiphytics H. fontinaloides (Spring) Trevis., H. heterocarpon (Fée) Holub, H. hexasticha B. Øllg. & P.G. Windisch and H. quadrifariata (Bory) Rothm. The anatomical features found that are probably adaptive to a water deficient environment are the presence of epidermal cells with sinuous anticlinal walls, invaginations in the inner side of external