Helechos, cromolitógrafo, publicado en 1895 - Ilustración de stock

Ferns: 1) Adders-tongue fern (Ophioglossum vulgatum, or Ophioglossum vulgare), a-detail of an ear of wheat, enlarged; 2) Floating fern (Salvinia natans), a+b-sporangium; 3) Pillwort (Pilularia globulifera); 4) Four leaf clover (Marsilea quadrifolia), a-puffy fruit; 5) Japanese sago palm (Cycas revoluta, or Cycas circinalis), b-carpel, c-female cone. Chromolithograph, published in 1895.