. Smithsonian miscellaneous collections . LECTIONS VOL. 67 DESCRIPTION OF PLATE 53 PAGE Nostoc sphaericCm Vaucher 231 Fig. 1. (Natural size.) A group of plant masses, flattened on a card,for comparison with the smaller specimens of the fossilspecies of Momnia f globosa (fig. 2b, pi. 48), and whenbroken, with Morania fragmenta (figs. 1, la, pi. 48). Nostoc pruniforme (Linn.) Agardh 232 Fig. 2. (Natural size.) Two plant masses flattened on a card thatresemble very closely similar circular films of the fossilspecies Morania globosa (figs. 2, 2a, 2c, pi. 48). Dasya gibbesii Harvey 237 Fig. 3. (X 2
. Smithsonian miscellaneous collections . LECTIONS VOL. 67 DESCRIPTION OF PLATE 53 PAGE Nostoc sphaericCm Vaucher 231 Fig. 1. (Natural size.) A group of plant masses, flattened on a card,for comparison with the smaller specimens of the fossilspecies of Momnia f globosa (fig. 2b, pi. 48), and whenbroken, with Morania fragmenta (figs. 1, la, pi. 48). Nostoc pruniforme (Linn.) Agardh 232 Fig. 2. (Natural size.) Two plant masses flattened on a card thatresemble very closely similar circular films of the fossilspecies Morania globosa (figs. 2, 2a, 2c, pi. 48). Dasya gibbesii Harvey 237 Fig. 3. (X 2.) Portion of a plant flattened on a card, for comparisonwith the fossil species Waputikia ramosa (fig. 2, pi. 54).2,a. (X2.) Portion of a stem for comparison with the stem ofthe fossil species Waputikia ramosa (fig. 2b, pi. 54). All of the figures on this plate are reproductions of photographsof specimens of recent algae in the National Herbarium at theSmithsonian Institution. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 87, NO. 5, PL. 63.
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
