. Contributions from the Botanical Laboratory, vol. 3. Botany; Botany. 392 Phyto-Phenology in its Application Record of Populus alba twigs d*.—Continued. Date. Jan. 27 Jan. 28-30 Twigs in Light. Succulent Housk. Catkins falling. Twigs in Dark- ness. Succulent House. Twigs in Light. Cool House. Catkins s 1 o vv 1 y I Catkins ready to elongating. \ fall. Feb. 16-17 Catkins fallen. Catkins not yet|Catkins dry or A few hanging, j hanging. fallen. Lenticels large. Terminal leaves unfolding. First small leaf. Leaves unfold, slowly, com- pletely. Record of Populus halsamifera twigs $. Date. Twigs in
. Contributions from the Botanical Laboratory, vol. 3. Botany; Botany. 392 Phyto-Phenology in its Application Record of Populus alba twigs d*.—Continued. Date. Jan. 27 Jan. 28-30 Twigs in Light. Succulent Housk. Catkins falling. Twigs in Dark- ness. Succulent House. Twigs in Light. Cool House. Catkins s 1 o vv 1 y I Catkins ready to elongating. \ fall. Feb. 16-17 Catkins fallen. Catkins not yet|Catkins dry or A few hanging, j hanging. fallen. Lenticels large. Terminal leaves unfolding. First small leaf. Leaves unfold, slowly, com- pletely. Record of Populus halsamifera twigs $. Date. Twigs in Light, j Twigs in Dark- ness. Jan. 6-14 Jan. 15-22 Succulent House. Succulent House. Terminal leaf buds opening. Large, normal. Jan. 23-26 Leaves 5 cm. Lat- eral leaves opening. Jan. 27-30 Feb. 16 One leaf bud shows color. Lenticels large. Twigs in Light. Cool House. Leaves opening. Leaves large. Len- ticels large. Leaves unfolding.'Leaves large, nor- Growth arrested. I mal. No flowers. No flowers. Record of Populus monilifera twigs c?. Date. Jan. 6-27 Jan. 28-30 Twigs in Light. Succulent House. Leaves veloping. de Twigs in Dark- ness. Succulent House. Feb. 2 Feb. 4-5 Feb. 6-15 Leaves well out. Lenticels & roots One catkin loosen- ing. Stamens showing. Twigs in Light. Cool House. Leaves veloping. de - Leaves well out. Catkin hanging. Catkin mature. Poor specimen. Good. Leaves large, nor- mal. No flowers. to the Plants of the Philadelphia Neighborhood. 393 Record of Alnus serrulata twigs. Date. I Twigs in Light. I Succulent House, Jan. 21 Jan. 22 Jan. 23-26 Twigs in Dark- ness. Succulent House. Catkins Twigs in Light. Cool House. Catkins mature. Catkins maturing. Pollen Catkins mature. Pollen. Pollen. Catkins Pollen still pro- somewhat dry. fuse. Catkins fallen Catkins dry Catkins dropping. Pistils in perfect condition. Cat- kins fallen. Pol- len over. Record of Lindera Benzoin twigs. Date. Twigs in Light. Succulent House. Twigs in Dark-|Twigs in Light. NESS. Su
Size: 1959px × 1275px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1892
