Emergent Plant Series: #3, Emergent-Plant Stage (3.19487)

Date: 1950s
Creator: Watts, May Theilgaard
Type: Drawing
Description:Part of a series of numbered illustrations about the stages of pond growth. This material includes an aerial view of a pond showing some plants at the surface of its edges and its bays with trees and hills in background, and a cross-section view of aquatic plants attached to pond bottom, with leaves and flowers of shallower plants extended up to and above the water's surface.

Header: EMERGENT-PLANT STAGE / PLANTS UPRIGHT / only roots and base under water

Drawings and text from top to bottom, left to right:

• pond and surrounding landscape
• cross-section [divided into 6 sections]:
  • EMERGENT ZONE
    • cat-tails
    • arrowhead
    • bur reed
    • pickerel weed
    • bullrush
  • FLOATING-LEAF ZONE
  • SUBMERGED-PLANT ZONE
  • SUBMERGED-PLANT ZONE
  • FLOATING-LEAF ZONE
  • EMERGENT ZONE

Extent: 1 sheet

Emergent Plant Series: #6, Climax Forest Stage (3.19490)

Date: 1950s
Creator: Watts, May Theilgaard
Type: Drawing
Description:Part of a series of numbered illustrations about the stages of pond growth. This material includes a view of a pond in the center with forest trees and hills in the background, and a cross-section of illustrations of forest trees, and trees and emergent plants of the water's edge.

Header: CLIMAX FOREST STAGE / THE PERMAMENT FOREST of the REGION

Drawings and text from top to bottom, left to right:

• pond and surrounding landscape
• cross-section [divided into 7 sections]:
  • CLIMAX FOREST
    • red oak
    • white oak 
    • hickory
  • LOWLAND FOREST ZONE
    • elm
    • ash
    • hackberry
    • linden
  • PIONEER TREE ZONE
    • willow
    • silver maple
  • EMERGENT ZONE
    • cat-tails
    • arrowhead
    • bur reed
    • pickerel weed
    • bull-rush
  • PIONEER TREE ZONE
  • LOWLAND FOREST ZONE
  • CLIMAX FOREST

Extent: 1 sheet

Growth of Pond: Emergent Plant Stage (3.19494)

Date: 1940 – 1950
Creator: Watts, May Theilgaard
Type: Drawing
Description:Part of a series of illustrations about the stages of pond growth. This material includes an aerial view of a pond with some plants showing at the surface of its edges and its bays, and a cross-section view of aquatic plants attached to pond bottom, with leaves and flowers of shallower plants extended up to and above the water's surface.

Header: EMERGENT PLANT STAGE / PLANTS UPRIGHT / only roots and base under water

Drawings and text from top to bottom, left to right:

• Pond
• CROSS-SECTION of MARGIN [divided into 3 sections]:
  • Emergent Plant Zone
    • cat-tails
    • arrowhead
    • bur reed
    • pickerel weed
    • bullrush
  • Floating Plant Zone
    • white water lily
    • cow lily
  • Submerged Plant Zone
    • pondweed
    • eel grass
    • water milfoil
    • etc.

Extent: 1 sheet