110 A PLANT-DISEASE SURVEY IN TEXAS. 



Plate IV. Species of Cercospora from various hosts, No. 4. Fig. 1. — Conldio- 

 pliores and spores of Cercospora sagittariae Ell. and Ev. on Saggitaria sp. 

 Fig. 2. — Conidiophores and spores of C. cratacgi Heald and Wolf on haw- 

 thorn {Crataegus sp.). Fig. 3. — Conidiophores and spores of C. malachrae 

 Heald and Wolf on mallow (Malachra capitata L.). Fig. 4. — Spores of 

 C. elaeagni Heald and Wolf on Elaeagnus sp. Fig. 5. — Conidiophores and 

 spores of C. physalicola Ell. and Barthol. on ground-cherry (Physalis sp.). 

 Fig. 6. — Conidiophores and spores of C. moricola Cke. on red mulberry 

 (Morus rubra L.). Fig. 7. — Conidiophores and spores of C. capsici Heald 

 and Wolf on pepper {Capsicum annuum L.). 



Plate V. Various genera of Fungi Imperfect! on different hosts. Fig. 1. — Coni- 

 diophores and spores of Ramularia momordic<ie Heald and Wolf on the 

 balsam-apple {Monwrdica balsamina L..). Fig. 2. — Conidiophores and spores 

 of R. cassiaecola Heald and Wolf on senna {Cassia occidentaUs L.). 

 Fig. 3. — Spores of Stagotwspora gigantea Heald and Wolf on century plant 

 {Agave americana L.). Fig. 4. — Spores of Ramularia cephalanthi (Ell. 

 and Kellerm.) Heald on buttonbush {Cephalanthus occidentulis L.). Fig. 

 5. — Conidiophores and six)res of R. hcdcricola Heald and Wolf on English 

 ivy {Hedera helix L.). Fig. 6. — Spores of Sporodesmium maclurac Thm. 

 on Osage orange {Toxylon pomiferum Raf. ). Fig. 7. — Pycuidium and 

 spores of Phleospora multimaculaiis Heald and Wolf on the sycumox'e 

 {Platanus occidentalls L.). Fig. S. — Section of a pycuidium of Pliyllosticta 

 biformis Heald and Wolf on leaf of Mexican persimmon {Diospyros texana 

 Sheele). X 73. Fig 9. — Section of a pycuidium of P. biformis Heald and 

 Wolf from the fruit of D. texana Sheele. X 73. Fig. 10.— Section of 

 a pycuidium and spores of Phleospora advsta Heald and Wolf on virgin's- 

 bower {Clematis drummondii T. and G. ). Fig. 11. — Section of a pycuidium 

 and spores of P. multimaculans Heald and Wolf on walnut {Juglans sp.). 



Plate VI. Species of Colletotrichum, Cylindrosporium, and Septoria on various 

 hosts. Fig. 1. — Group of spores of Colletotrichum griseum Heald and 

 Wolf on Euonymus japonicus Thuub. Fig. 2. — Portion of the acervulus of 

 C. griseum Heald and Wolf on E. japonicus Thunb. Fig. 3. — ^A single acer- 

 vulus showing distribution of set* of C. griseum Heald and Wolf. X 73. 

 Fig. 4. — Spores of Cylindrosporium. solitarium Heald and Wolf on black 

 locust {Robinia pseudacacia L.). Fig. 5. — Spores of Cylindrosporium lip- 

 piae Heald and Wolf on Lippia ligustrina (Lag.) Britton. Fig. 6. — ^Acervulus 

 of Colletotrichum caulicoUim Heald and Wolf on beau {Phaseohn^ vul- 

 garis L.) X73. Fig. 7. — Conidiophores, conidia, and setie of C. eaulicolum 

 Heald and Wolf. Fig. 8. — Distribution of acervuli (o) of C. eaulicolum on 

 stem of beau {Phaseolus vulgaris L.). Natural size. Fig. 9. — Acervulus 

 of Cylindrosporium defoliatum Heald and Wolf on the hackberry {Celtis 

 laevigata Willd.). Fig. 10. — Depressed acervulus bearing spores with 

 two septate spores of C. defoliatum Heald and Wolf on C. laevigata 

 Willd. Fig. IL^Spores of C. griseum Heald and Wolf on wild China tree 

 {Sapindus drummondii Hook, and Am.). Fig. 12. — A small portion of a 

 leaf showing acervuli (a) of C. griseum Heald and Wolf on the veins of 

 8. drummondii Hook, and Arn. ) . X 73. Fig. 13. — Setae, conidiophores, and 

 conidia of Colletotrichum on sorghum {Andropogon sorghum (L.) Brot). 

 Fig. 14. — Spores of Colletotrichum on A. sorghum (L. ) Brot. Fig. 15. — 

 Portion of the acervulus and a group of spores of Colletotrichum on Johnson 

 grass {A. halepcnsis (L.) Brot.). Fig. 16. — Several pycnidia of Septoria 

 pertusa Heald and Wolf on Johnson grass (A. halepensis (L.) Brot.V 

 X 73. Fig. 17. — A single pycuidium of <S. pertusa Heald and Wolf, {a, 

 Ostlole and protruding spores ; b, a group of four spores. ) 



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