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18 ACAULON SCHIMPERIANUM, Sulliv.

Tab. 9.

humillimæ, annuæ, sparsæ vel subgregariæ, ovoideo-bulbiformes.

brevissimus, simplex, 10–12-phyllus, basi radiculis longis copiose instructus.

arcte imbricata, superiora inferioribus ccostatis multo majora, obovato-lanceolata, valde cymbiformi-concava, apice recurva, ibidemque utraque pagina papillosa, marginibus superne recurvis eroso-dentata, laxe rhomboideo-areolata, costa valida statim infra folii apicem oriente longius excedente cuspidata.

dioici: planta mascula minima, gemmacea, ad plantæ; fructiferæ pedem sita, 3–4-phylla; antheridiis 2–3 eparaphysatis.

globosa, submutica, recondita, horizontalis, tenuimembranacea, aurantiacea; pedicello longiusculo cygneo; calyptra conico-mitriformi minutissima.

San Marcos, Texas, Wright. Athens, Illinois, Hall.

This species is distinguished by its papillose leaves destitute of a costa except at their recurved apices.

TAB. 9.—