American Mid Land Naturalist

American Mid Land Naturalist

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JW. ^=2. CT? A. Riccia arvensis, p. 115. aI. Habit, s. sporophyte, x3. a2. Spore, x280. a3. Diagram of section of thallus. B. Riccta fluilans, p. 113. bI. Habit of land form, s. sporophyte, x3. b2. Spore, x280. b3. Diagram of section of thallus.

Title:American Mid Land Naturalist
Publisher: - 1940


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