Note.—Plates I., II., IV., VI., VII., VIII., IX., X., were originally byMiss Mary P. Macbride; Plates V., XI., XII., were byMrs. Hattie J. Douglass; Plates XIII., XIV., XV., XVI., XVII., were by the lateMrs. Bertha E. Linder Pumphrey; Plate III. was the joint work ofMrs. PumphreyandMiss Macbride. All these, except IV., have been re-drawn for new plates; XVI., with additions, byMiss Margaret Hayes; the remainder byMr. W. J. Calvin, C. E. Plate XVIII. is byMiss Hayes; Plate XIX. by MissA. M. Held; Plate XX. byMiss Jane Coventry.
EXPLANATION OF PLATE I
Enteridium splendensMorg.,p. 211.
Fig. 1. Æthalium, natural size.
Fig. 1a. Spore of the same species, × 1400.
Fig. 1b. Capillitium of the same species, × 420.
Dictydiæthalium plumbeum(Fr.) Rost.,p. 215.
Fig. 2. Æthalium, natural size.
Fig. 2a. Sporangia and spores, × 50 (after Schroeter).
Fig. 2b. Persistent apices of the peridia.
Lindbladia effusa(Ehr.) Rost.,p. 204.
Fig. 3. A group of sporangia, × 30.
Fig. 3a. A single spore, × 1400.
Tubifera ferruginosa(Batsch) Macbr.,p. 206.
Fig. 4. A group of sporangia, × 5.
See alsoPlate VII., Fig. 8; andPlate XII., Fig. 14.
Cribraria dictydioidesCke. & Balf.,p. 222.
Fig. 5. Three sporangia, × 15.
Fig. 5a. A single sporangium, to show reticulate thickening, × 60.
Fig. 5b. A spore, × 1400.
Dictydium cancellatum(Batsch) Macbr.,p. 230.
Fig. 6. Sporangium, × 30.
Fig. 6a. A part of the peridial wall, seen from within, × 84.
Ceratiomyxa fruticulosa(Muell.) Macbr.,p. 19.
Fig. 7. Three sporiferous pillars, × about 40.
Fig. 7a. Tip of a single pillar, × 84.
Hemitrichia stipata(Schw.) Macbr.,p. 262.
Fig. 8. Sporangia, × 6.
Fig. 8a. The capillitium of the same species, × 750.
Fig. 8b. A single spore, × 1000.
PLATE IPLATE I
EXPLANATION OF PLATE II
Perichaena corticalis(Batsch) Rost.,p. 243.
Fig. 1. Sporangia, × 10.
Fig. 1a. A single spore, as if in section, × 900.
Fig. 1b. The capillitial thread, × 750.
Lachnobolus occidentalisMacbr.,p. 246.
Fig. 2. The sporangia, × 8.
Fig. 2a. A portion of the capillitium, × 750.
Fig. 2b. Spores, × 750.
See also 4 and 4 a below.
Arcyria cinerea(Bull.) Pers.,p. 254.
Fig. 3. The expanded fructifications, × 5.
Fig. 3a. Tip of a single capillitium mass, × 40.
Lachnobolus occidentalisMacbr.,p. 246.
Fig. 4. A cluster of sporangia, × 3; cylindric type.
Fig. 4a. Capillitium, × 750; to show characteristic surface of the threads.
Arcyria denudata(Linn.) Pers.,p. 253.
Fig. 5. Sporangia, two expanded, one still closed, × 20.
Fig. 5a. A part of the capillitium of the same species, × 750.
Arcyria nutans(Bull.) Grev.,p. 249.
Fig. 6. Expanded capillitium, etc., × 10.
Fig. 6a. Capillitium, × 750.
Fig. 6b. A piece of the capillitium thread, × 1400.
Ophiotheca wrightiiBerk. & C.,p. 241.
Fig. 7. A single sporangium, × 8.
Fig. 7a. A node of the capillitial thread, × 750.
Fig. 7b. A spore, × 750.
Oligonema nitens(Lib.) Rost.,p. 280.
Fig. 8. A single elater, × 750.
Figs. 8aand 8b. Spores, × 1000.
Badhamia macrocarpaRost.,p. 37.
Var.gracilis.
Fig. 9. Two sporangia, × 600.
PLATE IIPLATE II
EXPLANATION OF PLATE III
Hemitrichia clavata(Pers.) Rost.,p. 264.
Fig. 1. Three sporangia, one closed, × 8.
Fig. 1b. A single spore, × 1400.
Hemitrichia vesparium(Batsch) Macbr.,p. 262.
Fig. 2. Tip of the elater of capillitial thread, × 1400.
Fig. 2a. A single spore, × 1400.
Trichia iowensisMacbr.,p. 269.
Fig. 3. A cluster of sporangia, × 5.
Fig. 3a. Tip of a branching elater, × 750.
Fig. 3b. A single spore, × 750.
See alsoPlate X., Fig. 5.
Hemitrichia serpulaScop.,p. 260.
Fig. 4. A plasmodiocarp, × 3.
Fig. 4a. A single spore, × 1400.
Fig. 4b. An elater-tip, × 1400.
Trichia inconspicuaRost.,p. 268.
Fig. 5. A cluster of sporangia, × 12.
Fig. 5a. Tip of an elater, × 1400.
Fig. 5b. A single spore, × 750.
Physarum oblatumMacbr.,p. 91.
Fig. 6. A single sporangium, × 20; stipe shown of unusual length.
Fig. 6a. A single spore, × 1000.
See alsoPlate XIV., Fig. 3.
Physarum auriscalpium(Cke.) Lister,p. 90.
Fig. 7. A single sporangium, × 20; a New York specimen.
Fig. 7a. A single spore, × 1000.
Arcyria nodulosaMacbr.,p. 252.
Fig. 8. Capillitial thread, × 1200.
PLATE IIIPLATE III
EXPLANATION OF PLATE IV
Trichia persimilisKarst.,p. 271.
Fig. 1. Var. intermedia, × about 6.
Fig. 1a. Spore of same species, × 1400.
Fig. 1b. A second spore to show varying episporic network.
Fig. 1c. Tip of elater, shows vertical connecting bands.
Trichia decipiens(Pers.) Macbr.,p. 276.
Fig. 2. Sporangia, × about 8.
Fig. 2a. A spore of the same species, × 1400.
Fig. 2band 2c. Elaters of the same species, × about 225.
Trichia varia(Pers.) Rost.,p. 270.
Fig. 3. Sporangia, × about 8.
Fig. 3a. A spore of the same species, × 1000.
Fig. 3b. An elater of the same species, × 750.
Trichia scabraRost.,p. 271.
Fig. 4. Sporangia, × about 8.
Fig. 4a. A single spore of the same species, × 1400.
Fig. 4b. An elater-tip of the same, × 1400.
Trichia favoginea(Batsch) Pers.,p. 272.
Fig. 5. Sporangia, × about 8.
Fig. 5a. A single spore of the same, × 1400.
Fig. 5b. A single elater-tip of the same, × 1400.
Trichia persimilisKarst., varabruptaCke.,p. 271.
Fig. 6. An elater-tip, × 1400. It will be noticed that the spirals are connected by vertical bars.
Fig. 6a. A single spore of the same variety, × 1400.
Fig. 6b. A single spore, from the same sporangium as 6a.
Fig. 6c. Trichia persimilis, a single spore, × 1400.
Fig. 6d. Tip of an elater from the same, × 1400.
PLATE IVPLATE IV
EXPLANATION OF PLATE V
Lamproderma arcyrionemaRost.,p. 197.
Fig. 1. A single sporangium seen as if in section, × 40.
Fig. 1a. A single spore, × 1400.
Lamproderma scintillans(Berk. & Br.) List.,p. 195.
Fig. 2. A single sporangium seen as in section, × 40.
Fig. 2a. A single spore, × 1400.
Enerthenema papillatum(Pers.) Rost.,p. 190.
Fig. 3. An expanded, blown-out sporangium, × 25.
Lamproderma robustumEll. & Ev., p.
Fig. 4. A sporangium seen as in section, × 20.
Fig. 4a. A single spore, × 1000.
Comatricha laxaRost.,p. 177.
Fig. 5. A sporangium seen as if in section, × 40.
Fig. 5a. A single spore, × 2000.
Diachaea thomasiiRex,p. 188.
Fig. 6. Three sporangia magnified about 15 times.
Fig. 6a. A single spore of the same species, × 800.
Brefeldia maxima(Fries) Rost.,p. 154.
Fig. 7. A group of sporangia, showing columellæ; × 5.
Fig. 7a. Capillitial threads of the same species, × 300.
Fig. 7b. Spore of the same species, × 1500.
Amaurochæte fuliginosa(Sowb.) Macbr.,p. 149.
Fig. 8. A bit of so-called capillitium, × 300.
Fig. 8a. A single spore magnified about 1000 times.
PLATE VPLATE V
EXPLANATION OF PLATE VI
Comatricha typhoides(Bull.) Rost.,p. 181.
Fig. 1. A group of sporangia, × 5.
Fig. 1a. A single spore, × 1600.
Fig. 1b. Tip of the columella with its branches, × 50.
Comatricha longaPeck,p. 175.
Fig. 2. A single empty sporangium, × 6.
Fig. 2a. A part of the same taken near the apex, × 60.
Fig. 2b. A spore, × 1400.
Comatricha aequalisPeck,p. 180.
Fig. 3. A single sporangium, × 10.
Fig. 3a. The columella and capillitium, × 60.
Fig. 3b. A single spore, × 1600.
Figs. 3cand 3d. Sporangia to which the peridium still adheres, although in 3cin shreds.
Stemonitis fuscaRost.,p. 160.
Fig. 4. A group of sporangia, × 3.
Fig. 4a. A part of the columella and capillitium, × 60.
Fig. 4b. A single spore, × 1400.
Stemonitis axifera(Bull.) Macbr.,p. 168.
Fig. 5. A group of sporangia, × 3.
Fig. 5a. A single spore, × 1400.
Fig. 5b. A part of the capillitium with columella, × 60.
Stemonitis splendens,p. 164.
Fig. 6. A group of sporangia, × 3.
Figs. 6aand 6c. Single spores, the latter × 1400.
Fig. 6b. A part of the columella and branches, × 60.
Fig. 7. A shorter variety of the same species with coarser meshes in capillitium, × 3.
Fig. 7a. A part of the columella and net, × 60.
PLATE VIPLATE VI
EXPLANATION OF PLATE VII
Diachaea splendensPeck,p. 187.
Fig. 1. Sporangia and hypothallus, × 25.
Fig. 1a. Capillitium, × 50.
Fig. 1b. Spores, × 900.
Fig. 1c. Portion of the capillitium, × 150.
Didymium nigripesFr.,p. 123.
Fig. 2. Sporangia, × 30.
Fig. 2a. A spore, × 1400.
Fig. 2b. Calcareous crystals from the peridial wall, × 750.
Didymium melanospermum(Pers.) Macbr.,p. 121.
Fig. 3. Sporangia, × 10.
Fig. 3a. A single spore, × about 1000.
Diderma testaceum(Schrad.) Pers.,p. 137.
Fig. 4. Sporangia; the first exhibiting the two peridial walls and the spore-mass, × 10.
Fig. 4a. Spore, × 750.
Fig. 4b. Capillitial threads, × 750.
Diderma globosumPers.,p. 134.
Fig. 5. Sporangia; the first with the outer peridium broken away, × 10.
Fig. 5a. A single spore, × 750.
Mucilago spongiosa(Leyss.) Morg.,p. 114.
Fig. 6. An æthalium, borne on a grass-stem, natural size.
Fig. 6a. A spore, × 750.
Fig. 6b. Capillitium, with surface calcareous crystals, × 750.
Diderma crustaceumPeck,p. 135.
Fig. 7. A mass of clustered sporangia, to show habit of aggregation, natural size.
Tubifera ferruginosa(Batsch) Macbr.,p. 206.
Fig. 8. A single spore, × 1400.
PLATE VIIPLATE VII
EXPLANATION OF PLATE VIII
Diderma floriforme(Bull.) Pers.,p. 143.
Fig. 1. Sporangia of various ages, × 5.
Fig. 1a. Spore of the same species, × 1000.
Fig. 1b. A capillitial thread, × 1000.
Physarum polycephalumSchw.,p. 95.
Fig. 2. The sporangia, × 10.
Fig. 2a. Spores, × 750.
Fig. 2b. Capillitium, × 750.
Leocarpus fragilis(Dicks.) Rost.,p. 112.
Fig. 3. Sporangia, × 6.
Fig. 3a. A group of sporangia, natural size, to show habit.
Fig. 3b. A single spore, × 1800.
Physarella oblonga(Berk. & C.) Morg.,p. 109.
Fig. 4. A single sporangium, × 8.
Figs. 4aand 4b. Capillitium and spore respectively, × 900.
Craterium leucocephalum(Pers.) Ditmar,p. 105.
Fig. 5. Sporangia, the first closed, × 10.
Physarum sinuosum(Bull.) Weinm.,p. 52.
Fig. 6. Plasmodiocarp, natural size; 6a, × 4; see alsoPlate XIX., Fig. 15.
Physarum virescensDitmar,p. 61.
Fig. 7. Groups of sporangia, × 3 and × 8.
Fig. 7a. Spores, × 750.
Physarum viridePers.,p. 98.
Fig. 8. A single sporangium, × 25; 8a, reverse.
Fig. 8b. The same after spore-dispersal.
Fig. 8c. Capillitium, × 750.
PLATE VIIIPLATE VIII
EXPLANATION OF PLATE IX
Physarum didermoides(Ach.) Rost.,p. 78.
Fig. 1. Sporangia, × 15.
Fig. 1a. A single sporangium open; shows calcareous capillitium, × 15.
Fig. 1b. Spores, × 900.
Physarum notabileMacbr.,p. 80.
Fig. 2. A cluster of sporangia, × 15.
Fig. 2a. A single sporangium open, × 15.
Fig. 2b. Spores, × 900.
See alsoPlate XV., Figs. 2, 2a, and the frontispiece.
Physarum contextumPers.,p. 56.
Fig. 3. A group of sporangia, × 15.
Fig. 3a. Spores of the same, × 600.
Physarum cinereum(Batsch) Pers.,p. 59.
Fig. 4. A group of sporangia, × 4.
Fig. 4a. A single sporangium, × 20.
Fig. 4b. Capillitium of the same, × 240.
Fig. 4c. Spores, × 450.
Physarum albescensEllis,p. 86.
Fig. 5. Sporangia, × 5.
See alsoPlate XVI., Figs. 4 and 4a.
Fig. 5a. Spore of the same species, × 450.
Fig. 5b. Capillitium of the same, × 240.
Physarum serpulaMorg.,p. 49.
Fig. 6. Plasmodiocarps, about natural size.
Fig. 6a. A bit of the plasmodiocarp, showing structure, × 6.
Fig. 6b. A spore of the same species, × 1400.
Physarum leucopusLink.,p. 79.
Fig. 7. A single sporangium, × 15.
Fig. 7a. A spore of the same species, × 900.
Fig. 7b. A fragment of the capillitium.
PLATE IXPLATE IX
EXPLANATION OF PLATE X
Badhamia rubiginosa(Chev.) Rost.,p. 43.
Fig. 1. A group of sporangia, × 5.
Fig. 1a. Two sporangia, same species, × 18, to show persisting capillitium.
Fig. 1b. Capillitium fragment, × 240.
Fig. 1c. Spore of the same species, × 750.
Fuligo septica(L.) Gmel.; formlaevis,p. 29.
Fig. 2. An æthalium, natural size.
Fig. 2a. A section of the same, × 10.
Fig. 2b. A spore of the same, × 750.
Fuligo cinereaPers.,p. 26.
Fig. 3. A small æthalium borne upon a blade of grass, natural size.
See alsoPlate XXIII.
Fig. 3a. Capillitial fragment from the same specimen, × 450.
Fig. 3b. Spores of the same, × about 750.
Didymium minusList.,p. 121.
Fig. 4. A single sporangium, × 25.
Fig. 4a. The capillitium and fragment of the peridium of the same species, × 380.
Fig. 4b. A spore of the same species, × 1000.
Trichia iowensisMacbr.,p. 269.
Fig. 5. Tip of an elater, × 1400.
See alsoPlate III, 3, 3a, 3b.
Badhamia papaveraceaBerk. & Rav.,p. 42.
Fig. 6. Sporangia, a cluster, × 8.
Fig. 6a. A cluster of spores, × 400.
Fig. 6b. A single spore of the same, × 1400.
Reticularia lycoperdonBull.,p. 210.
Fig. 7. A fragment of the capillitium, × 240.
Fig. 7a. A single spore of the same species, × 1400.
See alsoPlate XII., Fig. 3.
PLATE XPLATE X
EXPLANATION OF PLATE XI
Comatricha nigraPers.,p. 178.
Fig. 1. A group of sporangia, × 10.
Fig. 2. A single sporangium as in section, × 60.
Fig. 3. A single spore, × 1600.
Stemonitis confluensEll. & Cke.,p. 158.
Fig. 4. A group of sporangia, × 10.
Fig. 4a. A thread of capillitium with adhering disk, × 30.
Fig. 5. A spore of the same, × 2000.
Stemonitis webberiRex,p. 163.
Fig. 6. A group of sporangia, × 4.
Fig. 7. A single sporangium as in section, × 40.
Fig. 8. A single spore, same species, × 1250.
Comatricha suksdorfiiEll. & Ev.,p. 178.
Fig. 9. A group of sporangia, × 4.
Fig. 10. A bit of the capillitium, × 60.
Fig. 11. A single spore, × 1600.
Comatricha cæspitosaSturg.,p. 172.
Fig. 12. A cluster of sporangia, × 4.
Fig. 13. The capillitium highly magnified.
Fig. 14. A single spore, × 1600.
PLATE XIPLATE XI
EXPLANATION OF PLATE XII
Lindbladia effusa(Ehr.) Rost.,p. 204.
Fig. 1. Fructification, natural size.
Fig. 2. Portion of same in section, × 3.
Reticularia lycoperdonBull.,p. 210.
Fig. 3. Residual capillitial structure, the spores blown away; about natural size.
Enteridium splendensMorg.,p. 211.
Fig. 4. Fructification, a large one, natural size.
Fig. 5. Same in section, × 3.
Arcyria ferrugineaSauter,p. 253.
Fig. 6. Three sporangia, magnified about 10 times.
Fig. 6a. A single spore, magnified.
Fig. 6b. Capillitial thread.
Licea variabilisSchrad.,p. 200.
Fig. 7. Sporangia, magnified about 6 times.
Fig. 8. Spore, magnified to show surface characters.
Tubifera casparyi(Rost.) Macbr.,p. 207.
Fig. 9. A group of sporangia; shows the pseudo-columellæ; × about 5.
Licea biforisMorg.,p. 201.
Fig. 10. Sporangia dehiscent, magnified about 10 times.
Orcadella operculataWing.,p. 203.
Fig. 11. Sporangia, magnified about 30 times.
Cribraria argillaceaPers.,p. 218.
Fig. 12. Sporangia, magnified about 10 times.
Fig. 13. A single sporangium, × about 40.
See alsoPlate XVII., Fig. 1.
Tubifera ferruginosa(Batsch) Macbr.,p. 206.
Fig. 14. Sporangia magnified to show apiculate tops. Cf.
Comatricha ellisiiMorg.,p. 184.
Fig. 15. Sporangium, × 40.
Fig. 15a. A single spore, × 1000.
Comatricha pulchella(Bab.) Rost,p. 183; vid.p. 284.
Fig. 16. Sporangium, × 20.
Fig. 16a. A single spore, × 1000.
Comatricha subcaespitosaPeck,p. 185.
Fig. 17. Sporangium, × 20.
Fig. 17a. A single spore, × 1000.
Comatricha gracilisWingate,p. 183.
Fig. 18. Sporangium, × 20.
Fig. 18a. A single spore, × 1000.