Open main menu

An Illustrated Flora of the Northern United States, Canada and the British Possessions/Monocotyledones

Sub-class 1. Monocotylédones.

Embryo of the seed with but a single cotyledon and the first leaves of the germinating plantlet alternate.   Stem composed of a ground-mass of soft tissue (parenchyma) in which bundles of wood-cells are irregularly imbedded; no distinction into wood, pith and bark.  Leaves usually parallel-veined, mostly alternate and entire, commonly sheathing the stem at the base and often with no distinction of blade and petiole.  Flowers mostly 3-merous or 6-merous.

Monocotyledonous plants are first definitely known in Triassic time.   They constitute between one-fourth and one-third of the living angiospermous flora.

Monocotyledone Families

Family 1.  Typhaceae Cat-Tail Family
Family 2.  Sparganiaceae Bur-Reed Family
Family 3.  Zannichelliaceae Pondweed Family
Family 4.  Naiadaceae Naias Family
Family 5.  Zosteraceae Eel-Grass Family
Family 6.  Scheuchzeriaceae Arrow-Grass Family
Family 7.  Alismaceae Water-Plantain Family
Family 8.  Vallisneriaceae Tape-Grass Family
Family 9.  Hydrocharitaceae Frog's-Bit Family
Family 10.  Gramineae Grass Family
Family 11.  Cyperaceae Sedge Family
Family 12.  Araceae Arum Family
Family 13.  Lemnaceae Duck-Weed Family
Family 14.  Mayacaceae Mayaca Family
Family 15.  Xyridaceae Yellow-Eyed Grass Family
Family 16.  Eriocaulaceae Pipewort Family
Family 17.  Bromeliaceae Pine-Apple Family
Family 18.  Commelinaceae Spiderwort Family
Family 19.  Pontederiaceae Pickerel-Weed Family
Family 20.  Juncaceae Rush Family
Family 21.  Melanthaceae Bunch-Flower Family
Family 22.  Liliaceae Lily Family
Family 23.  Convallariaceae Lily-of-the-Valley Family
Family 24.  Trilliaceae Wake-Robin Family
Family 25.  Smilaceae Smilax Family
Family 26.  Haemodoraceae Bloodwort Family
Family 27.  Amaryllidaceae Amaryllis Family
Family 28.  Dioscoreaceae Yam Family
Family 29.  Iridaceae Iris Family
Family 30.  Marantaceae Arrow-Root Family
Family 31.  Burmanniaceae Burmannia Family
Family 32.  Orchidaceae Orchid Family