台灣植物誌 第二版 Flora of Taiwan, 2nd edition Vol. 1
36. SALVINIACEAE 槐葉蘋科
DEVOL CHARLES E.
A family of small floating ferns; stems horizontal, vegetative reproduction rapid due to fragmentation; roots absent. Leaves of two types:floating green leaves in pairs, the midrib distinct, the upper surface covered with papillae, the under-surface covered with straight multicellular hairs; submersed leaves finely dissected, root-like. Sporocarps borne in a cluster on a branch of the rootlike leaf, globular or ovoid,m covered with multicellular hairs, extemal appearances alike, some containing megasporangia, others microsporangia; being borne on the much-branched receptacles.
A family of only one living genus.
1. SALVINIA (Michx.) Adans. 槐葉蘋屬
Characters of the family.
About 10 species, one in Taiwan.
1. Salvinia natans (L.) All., F1. Pedem. 2: 289. 1785; DeVol in Taiwan 1: 58. pl. 13. 1975. 槐葉蘋 Pl.210
Marsilea natans L., Sp. Pl. 2: 1099. 1753.
Leaves oval-oblong, 10-15 mm lng; papillate on upper surface, with 4 free hairs on tips of each papilla. Sporocarps globose, covered with brown, multicellular hairs.
Distributed in Europe, Asia, Africa, North America. Floating on ponds, ditches, paddy fields.
TAIPEI: Neihu, Kuo 778; Taipei City, Kao s. n. 1958*.
Known from nearly every county, but very few collections made.