56 THE FRUIT OF OPUNTIA FULGIDA. 



LITERATURE CITED. 



Caspaei, H. 1883. Beitrage der Kenntniss des Hautgewebes der Cacteen. Zeit. 



fur Naturwiss., 2, pp. 30-80. 

 Cbockeb, W. 1906. Role of Seed-coats in Delayed Germination. Bot. Gaz., 42, pp. 



265-290. 

 Daebishire, O. V. 1904. Observations on Mammillaria elongata. Ann. of Bot., 18, 



pp. 375-416. 

 Debet, M. H. 1846. Proliferation d. Fruchtknotens lieferte eine Opuntia Salm- 



Dyckiana. Verhandl. d. Naturhist. Ver. Preuss. Rheinl., 3, 83, 84. 

 Delavaud, M. C. 1858. Inflorescence du Peireshia bleo. Bull. Soc. Bot. de France, 



5, p. 685. 

 Delbbouck, C. 1875. Die Pfianzenstacheln. Hanstein Botan., Abhandl. 2, pp. 1-119. 

 Engelmann, W. 1887. " Cactacese of the Boundary," in Botanical Works. Edited 



by W. Trelease and Asa Gray. Cambridge, p. 212. 

 EwAET, A. J. 1907. The Delayed Dehiscence of CalUstemon rigida. Ann. of Bot, 21, 



pp. 125-137. 

 Ganong, W. F. 1894. Beitrage zur Kenntniss der Morphologie und Biologic der 



Cacteen. Flora, Erganzungsb., pp. 49-86. 

 . 1898. The Comparative Morphology of the Embryos and Seedlings of the 



Cactace*. Ann. of Bot., 12, pp. 423-474. 

 GOEBEL, Karl. 1886. Zur Entwickelungsgeschichte des Unterstandigen Frucht- 

 knotens. Bot. Zeit, 44, pp. 729-738. 



. 1889. Pflanzenbiologischeschilderungen. I. Kakteen, pp. 67-108. 



Griffiths, D. 1913. Behavior, Under Cultural Conditions, of Species of Cacti 



Known as Opuntia. Bull. No. 31, U. S. Depart, of Agricult. 

 Harris, J. A. 1905. The Fruit of Opuntia. Bull. Torrey Bot. Club, 32, pp. 531-536. 

 HiLDEBRANDT, F. 1888. Ueber Bildung von Laubsprossen aus Bliithensprossen bei 



Opuntia. Ber. d. deutsch. bot. Gesellsch. 6, pp. 109-112. 

 Kauffmann, N. 1859. Zur Entwickelungs. d. Cactaceenstacheln. Bull. Soc. Imp. 



des Naturalistes de Moscow, 32, part II, pp. 585-603. 

 Lauteebach, C. "W. 1889. Untersuchungen iiber Bau und Entwickelungs der Sekret- 



behalter bei des Cacteen. Bot. Centrbl., 37, p. 257. 

 Lloyd, F. E. 1907. Observations on the Flowering Period of Certain Cacti. Plant 



World, 10, pp. 31-39. 



. 1916. Abscission in MiraUlis jalapa. Bot Gaz., 61, pp. 213-230. 



Meehan, T. 1888. Opuntia Fruits. Gard. Chron., 3, p. 328. 



Noll, F. C. 1872. Zwei Abnormitaten an Cactusfruchten. Ber. d. Senckenbg. 



Gesell., 1872, p. 118. 

 Penzig, 0. 1890. Pflanzenteratologie. Genoa. 

 Schleiden, M. J. 1845. Beitrage zur Anatomie des Cacteen. Mem. I'Acad. Imp. d. 



Sci. d. St Petersb., ser. 6, vol. 4, pp. 335-380. 

 Schumann, K. 1894. " Cactacese." Engler u. Prantl, III, Qa, pp. 156-205. 



. 1890. Flora Brasiliensis, IV, 2. 



SoLEREDER, H. 1908. Systematic Anatomy of the Dicotyledons. Engl. Transl., pp. 



406-415. 

 TouMEY, J. W. 1895. Vegetal Dissemination in Opuntia. Bot. Gaz., 20, pp. 356-361. 



— . 1898. The Tree Opuntias of the United States. Bot. Gaz., 25, pp. 119-124. 



. 1905. Notes on the Fruits of Some Species of Opuntia. Bull. Torr. Bot. 



Club, 32, pp. 235-239. 

 Wettebwald, X. 1889. Blatt- und Sprossbildung bei Euphorbien und Cacteen. 



Nova Acta Kaiserl. Leopold. Carol., Ak. 53, pp. 379-440. 

 Wolfe, F. A. 1912. Notes of the Anatomy of Opuntia lindheimeri. Plant World, 



15, pp. 294-298. 

 ZuccABiNi, J. G. 1836. Plantarum novarum vel minus cognitarum, etc. Fasc. 



tertius, Cactacese. Abhandl. Muench. Akad., Math, physik. Klasse, 2, 



pp. 599-742. 



