THE MITOCHONDRIAL CONSTITUENTS OF PROTOPLASM. 



53 



PLXNTS— Continued. 



Reproductive system — contimied. 

 Spermatoph>'tes : 



Pollen, pollen mother-cells, tapetum; Nymphsea, 

 Meves (1904, p. 284); AsparagiLs, Lewitsky 

 (1910, pi. 17); Lilium, Cucurbita, Guilliermond 

 (1912a, fig. 6; 1914h, fig. 6). 

 Embryo sac, ovule, antipodaLs, synergids, embryo 

 tegument, nutritive cells; Lilium, Guilliermond 

 (19120, figs. 4, 5; 19146, fig. 13); Pensa (1911, 

 fig. 2). 

 Seed, barley, Ricinus, Guilliermond (1912o, fig. 7). 

 Vegetative system: 



Filaments of alga> and fungi; \'aucheria, Achlya, 

 Rudolph (1912, pi. IS); Penicillium, Endomyces, 

 Guilliermond (1914b, fig. 10). 

 Apical cells of alga", Cystoseira, Nicolosi-Roncati 



(19126, p. 144); Fucus, Le Touze (1912, pi. 9). 

 Primary meristem of root, dermatogen, poriblem, 

 plerome, root-cap; Asparagus, Lewitsky (1910, 

 pi. 17), Trianea, Sapehin (1915, pi. 11). 

 Primary merLstem of stem-tip, buds, dennatogen, 

 periblem, plerome; Elodea, Euphorbia, Sapehin 

 (1915, pLs. 10-11); Asparagus, Rudolph (1912, pi. 



Vegetative system — continued. 



18); Lewitskv (1910, pi. 17); Tropa>olum, Guillier- 

 mond (19120^ fig. 2); Tulip, Pensa (1911, figs. 6, 7); 



Secondary meristem, cambium, Guilliermond (1912(1, 

 p. 3.58). 



Epidermis of stem, root, leaf, flower, fruit ; Aspara- 

 gus, Trianea, Sapehin (1915, pis. 10, 11); Cheno- 

 podium, Juglans, Iris, Tulij). Cli\ia, Tropa?oluni, 

 Ciuilliermond (1917, p. 233; 19146, fig. 14). 



Mesophyll cells, palisade cells, leaves, carpels; 

 Nereum, "haricot," Guilliermond (19146, fig. 11, 

 12; 1912a, pi. 18). 



Leaf cells, stem-tip of mosses, Polytrichium, Sapehin 

 (1913, pi. 14). 



Leaf cells of ferns; Aspidium, Scolopendrium, 

 Pensa (1911, figs. 3, 4, 5). 



Protonenia cells of mosses, Funaria, Sapehin 

 (1913, pi. 14). 



Secreting cells, Juglans, Guilliermond (1914n, 

 p. 566). 



Hair cells. Cucurbita, Maximow (1913, p. 243). 



Giant cells of Heterodera galls; Vitis, Ngmcc 

 (1910, p. 171). 



DIFFERENT TYPES OF ORGANISMS. 



It is often of interest also to know in just what forms, both animal and vegetable, 

 mitochondria have been described and by whom. I have prepared the following 

 summary with this end in view. The work of the older authors is very difficult to 

 interpret, especially that of Retzius, for he has described structures derived from 

 mitochondria in mature spermatozoa of hundreds of different forms. These bodies 

 do not possess the staining reactions of mitochondria, though they are formed 

 from them ; they are not soluble in acetic acid and may be demonstrated by ordinary 

 methods of technique. Strictly speaking, they are assuredly not mitochondria, but 

 since they develop from mitochondria (see page 101), it is difficult to say when they 

 cease to be mitochondria. For a description of them I venture to refer to the 

 excellent account of Duesberg (1912, page 615). 



ANIMALS. 



Protozoa : 

 Rhizopoda : 



Amoeba gorgonia (?), Faure-Fremiet (1910a, p. .507). 



Cochhopodium pellucidum, Faure-Fremiet (1910«, 

 p. 508). 



Actinophrys sol, Faure-Fremiet (1910a, p. 509). 



Amoeba proteus, Vonwiller (1915, p. 485). 



Amoeba limax, L. and R. Zoja (1891, p. 242). 



Amoeba chondrophora, Arndt (1914, p. 51). 

 Mastigophora: 



Cryptomonas , Faure-Fremiet (1910a, p. 



510). 



Monadi, L. and R. Zoja (1891, p. 242). 



Chilomonas paramoecium, Prowazek, according to 

 Faur^-Fremiet (1910a, p. 510). 



Trypanosoma lewisi, Shipley (1916, p. 444). 



Blastocystis enterocola, Trichomonas angusta, 

 Alexeieff (19166, p. 1074). 



Giardia cunicula, anadenalis, miuis, and agilis. 

 Trichomonas batrachiorum and muris, Hexamastix 

 termitis, Octomastix jiarva and motelUe, Octo- 

 mitus intestinalis, Trichonympha agilis, Entri- 

 chomastix motellae, and Tetramastix, Alexeieff 

 (19176, p. 499). 



Protozoa — continued. 

 Sporozoa : 



Monocystis a.scidi;e, Hirschler (1914, p. 304). 

 Hsemogregarina sergentium, Viguier and Weber 



(1912, p. 92). 

 Infusoria: 



Vorticella, under heading of "Spheroblasts," by 



Czermak, according to P'aure-Fremiet (1910a, 



p. 478). 

 Vorticella convallaria, Faure-Fremiet (1910a, p. 523). 

 Epistylis flavicans, under heading of "Spheroblasts," 



by Greef, according to Faure-Fremiet (1910o, 



p. 478). 

 Toxodes rostrum, Faur6-Frcmiet (1910a, p. 495). 

 Stentor, Nassula, Urostyla grand is, Faure-Fremiet 



(1910a, p. 496). 

 Glaucoma piriformis, Faur6-Fremiet (1910o, p. 501). 

 Trichodinopsis paradoxa, CycIo.stoma elegans, Faur6- 



Fremiet (1910a, p. .502). 

 Carchesium jjolypinum, .Spiro.stomum ambiguum, 



Faur<:'-Fremiet (1910a, p. 504). 



Campanella — . , Faur6-Fremiet (1910a, p. 506). 



Parama'cium caudatum, Faur^-Fremiet (1910a, 



p. 511). 



