Flora and Fauna
- 2581
- Populus deltoides
- Student project on the cottonwood tree including classification, habitat, adaptation, nutrition, reproduction and interactions with other species.
- 2582
- Populus fremontii
- Includes distribution and occurrence, botanical and ecological characteristics, value and use, and fire ecology.
- 2583
- Populus grandidentata
- Distribution and occurrence, value and use, characteristics, and fire ecology.
- 2586
- Populus tremuloides
- Distribution and occurrence, value and use, characteristics, and fire ecology.
- 2590
- The Rutaceae
- Botanical characteristics of this family with photographs and a brief description of a number of individual species.
- 2591
- Zanthoxylum martinicense
- Description of this spiny-trunked tree, with photographs of foliage, stems, flowers and bark.
- 2592
- Zanthoxylum pimpinelloides
- Description of this spiny bush, with photographs of foliage, flowers and fruits.
- 2596
- Spathelia brittonii
- Description and photographs of this elegant tree, endemic to Cuba, and its leaves.