. The Characeae of America. 55 OO Nucleus, yellowish-red. 17. (Fig-. 50) flaccida A. Br. -f~ ~\- Fruit separated (antheridia and sporophydia on different nodes of same leaf); verticil with 14-16 leaves, leaves with 6-8 nodes. 18. Griffilhii A. Fig- 5°- X X Stipules small. -|- Fruit conjoined. Q Nucleus yellowish-red (compare No. 17); flaccida f. brevibracteata A. Br. OO Nucleus black. 19. psilopitys A. Br. 1) Bracts 1^-3 times the length of the sporo- phydia. 193. Drummondii A. Br. 2) Bracts 3-4 times as long as the sporophydia, 190. Weddellii A. Br. (S.) -j—|- Fruit disjoined, nucleus bl


. The Characeae of America. 55 OO Nucleus, yellowish-red. 17. (Fig-. 50) flaccida A. Br. -f~ ~\- Fruit separated (antheridia and sporophydia on different nodes of same leaf); verticil with 14-16 leaves, leaves with 6-8 nodes. 18. Griffilhii A. Fig- 5°- X X Stipules small. -|- Fruit conjoined. Q Nucleus yellowish-red (compare No. 17); flaccida f. brevibracteata A. Br. OO Nucleus black. 19. psilopitys A. Br. 1) Bracts 1^-3 times the length of the sporo- phydia. 193. Drummondii A. Br. 2) Bracts 3-4 times as long as the sporophydia, 190. Weddellii A. Br. (S.) -j—|- Fruit disjoined, nucleus black. 20. Thvuaitesii A. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Allen, Timothy Field, 1837-1902. New York : [s. n. ]


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