Richard Walter Pohl

1916 – 1993

• Family #15, Gramineae
• How to know the grasses
• Keys to Iowa vascular plants
• New species of Digitaria, Pennisetum, and Poa (Gramineae) from Costa Rica
• A taxonomic study on the grasses of Pennsylvania
• Agropyron hybrids and the status of agropyron pseudorepens
• Chromosome numbers and note on some Central American grasses
• Chromosome Numbers of Costa Rican Grasses
• Chromosome numbers, meiotic behavior, and notes on tropical American grasses (Gramineae)
• Controlled maceration of grass leaves in 40-80% nitric acid for preparation of epidermis for slides
• Cytological and distributional note on Thladiantha dubia (Cucurbitaceae)
• How to know the grasses