Читать книгу Seeds of Michigan Weeds - W. J. Beal - Страница 2

MICHIGAN AGRICULTURAL EXPERIMENT STATION

INCORPORATED

STATE BOARD OF AGRICULTURE

STATION COUNCIL

ADVISORY AND ASSISTANT STAFF.

SUB-STATIONS.

DISADVANTAGES OF WEEDS.

SOME SMALL BENEFITS.

WHAT ENABLES A PLANT TO BECOME A WEED.

HOW ARE WEEDS INTRODUCED AND HOW ARE THEY SPREAD?

WHERE CERTAIN WEEDS ARE TROUBLESOME.

SOME MEANS FOR PREVENTING THE INTRODUCTION OF WEEDS AND A FEW RULES FOR THEIR EXTERMINATION.

SEEDS OF MICHIGAN WEEDS.

ASCOMYCETES.

GRASS FAMILY. GRAMINEAE.

SEDGE FAMILY. CYPERACEAE.

RUSH FAMILY. JUNACEAE.

LILY FAMILY. LILACEAE.

NETTLE FAMILY. URTICACEAE.

BUCKWHEAT FAMILY. POLYGONACEAE.

GOOSEFOOT OR PIGWEED FAMILY. CHENOPODIACEAE.

AMARANTH FAMILY. AMARANTHACEAE.

KNOTWEED FAMILY. ILLECEBRACEAE.

AIZOACEAE.

PINK FAMILY. CARYOPHYLLACEAE.

PURSLANE FAMILY. PORTULACACEAE.

CROWFOOT FAMILY. RANUNCULACEAE.

POPPY FAMILY. PAPAVERACEAE.

MUSTARD FAMILY. CRUCIFERAE.

ORPINE FAMILY. CRASSULACEAE.

ROSE FAMILY. ROSACEAE.

PULSE FAMILY. LEGUMINOSAE.

GERANIUM FAMILY. GERANIACEAE.

SPURGE FAMILY. EUPHORBIACEAE.

CASHEW FAMILY. ANACARDIACEAE.

MALLOW FAMILY. MALVACEAE.

ST. JOHN'S-WORT FAMILY. HYPERICACEAE .

EVENING-PRIMROSE FAMILY. ONAGRACEAE.

PARSLEY FAMILY. UMBELLIFERAE.

MILKWEED FAMILY. ASCLEPIADACEAE.

MORNING GLORY FAMILY. CONVOLVULACEAE.

BORAGE FAMILY. BORAGINACEAE.

VERVAIN FAMILY. VERBENACEAE.

MINT FAMILY. LABIATAE.

NIGHT SHADE FAMILY. SOLANACEAE.

FIGWORT FAMILY. SCROPHULARIACEAE.

PLANTAIN FAMILY. PLANTAGINACEAE.

MADDER FAMILY.

TEASEL FAMILY. DIPSACACEAE.

COMPOSITE FAMILY. COMPOSITAE.

INDEX.