Flora and Fauna
- 1861
- Gonium pectorale: A Chlorophyte
- Photographs and information on this green alga, a member of the Volvocales.
- 1862
- Genera in Pteridaceae
- Genus list with authorities and synonyms compiled at Royal Botanic Gardens, Kew.
- 1863
- Pteridaceae
- List of genera in Manual de Flora de Costa Rica with hyperlinks to species and specimen data.
- 1864
- Haematococcus
- Photographic study by Steve Durr of this alga which is often to be found in bird baths.
- 1865
- Pteridium aquilinum
- Photographs of Bracken in summer and winter and a description. Previously classified as Pteris aquilina.
- 1867
- Pteris cretica
- Information sheet on Cretan Brake/Table Fern from University of Vermont. Includes cultivation data, and lists of cultivars and related species.
- 1868
- Pteris excelsa
- Photographic image of Pteris excelsa, Pteridaceae, waimakanui, 'iwa, Waikau, Haleakala, Maui, indigenous to Hawaii.
- 1870
- Pteris lidgatii
- Photographic image of Pteris lidgatii, Pteridaceae, Punal'u, O'ahu, endemic to Hawaii.
- 1871
- Water Net
- Article by Jan Parmentia on the freshwater alga, Hydrodictyon, that reproduces so fast that it can become a pest.
- 1872
- Arsenic Solutions
- Article on aspects of Pteris vittata as a hyperaccumulator of arsenic, endangering children in playgrounds in Florida.
- 1877
- Enteromorpha flexuosa: Hollow Green Weed
- Photograph and information on this filamentous green alga, including its taxonomy, description, habitat, distribution, life history, population biology, physical tolerances, community ecology and special status.