Family 1. COLEQSPORIACEAE 
By JosHPH CHARLES ARTHUR 
Basidia internal. Telia waxy; teliospores usually compacted laterally into 
layers, sessile (pedicelled in the South American genus Chrysopsora), the walls 
weakly gelatinous. 
Both North American genera belong to the subfamily COLEOSPORIATAE, with basidiospores on 
long sterigmata; pycnia and other sori originating between the epidermis and mesophbyl; aecia 
when present with bladdery peridium rupturing irregularly ; uredinia when present naked, with 
catenulate spores. 
Life-cycle with all spore-forms. 1, COLEOSPORIUM. 
Life-cycle with only telia, 2. GALLOWAYA. 
1. COLEOSPORIUM Lév. Ann. Sci. Nat. III. 8: 373. 1847. 
Peridermium Chev. Fl. Env. Paris 1: 385. 1826. Not Peridermiun: Schmidt & Kunze, 1817. 
Erannium Bon. Coniom.17. 1860. 
Stichopsora Dietel, Bot. Jahrb. 27: 565. 1899. 
Cycle of development includes pycnia, aecia, uredinia and telia, with distinct alter- 
nating phases; heteroecious. Pycnia and other sori subepidermal. 
Pycnia flattish, linear, dehiscent by a slit, without ostiolar filaments. 
Aecia erumpent, definite. Peridium colorless with verrucose walls. Aeciospores glo- 
bose to oblong, with colorless wall, the outer part formed of densely packed, deciduous 
tubercles. 
Uredinia erumpent, definite, without peridium. Urediniospores catenulate, globoid to 
oblong, pulverulent ; wall colorless, closely verrucose, pores obscure. 
Telia indehiscent except through weathering, waxy, somewhat indefinite, usually 
roundish. ‘Teliospores sessile (by successive formation and by displacement due to lateral 
pressure often appearing catenulate and pedicellate), one-celled (by early division of the 
contents appearing four-celled); wall smooth, colorless, thickened and gelatinous at apex. 
Type species, Uredo Rhinanthacearum DC. (on Rhinanthus glaber). 
Telia and uredinia inhabiting monocotyledonous hosts (Orchidaceae). 1. C. Bletiae. 
Telia and uredinia inhabiting dicotyledonous hosts. 
Host belonging to family Grossulariaceae. 2. C. ribicola, 
Host belonging to family Loasaceae. 3. C. Menizeliae. 
Host belonging to family Begoniaceae. 4. C. Begoniae. 
Host belonging to family Apocynaceae. . ; 
Urediniospores thin-walled, tubercles persistent. 5. C, apocynaceum. 
Urediniospores thicker-walled, tubercles deciduous. 6. C. Plumierae, 
Host belonging to family Convolvulaceae. 7. C. [pomoeae. 
Host belonging to family Caprifoliaceae. 8. C. Fiburni. 
Host belonging to family Campanulaceae. 9. C. Campanulae. 
Host belonging to family Carduaceae. 
Of the tribe Vernonieae. . 
Urediniospores thin-walled, thicker above. . 10. C. Vernoniae. _ 
Urediniospores rather thick-walled, of uniform thickness. » 11. C, Elephantopodis, 
he tribe Eupatorieae. 
is Urcainlespares small ; wall medium thick, tuberculate. 12. C. Eupatorit. 
Urediniospores large ; wall thin, papillose. : 
Teliospores cylindrical. 13. C. Steviae. | 
Teliospores clavate. 14. C. Laciniariae. 
Of the tribe Astereae. 15. C. Solidaginis. 
he tribe Heliantheae. 
me Coenen large ; wall unevenly thick. 16. C. Madiae. 
Urediniospores small ; wall thin. . 
Telia prominent, often confluent in pustular groups. 17. C. anceps. 
Telia low, scattered. . . . / ; 
7 Teliospores narrowed at both ends, apical outlines distinct. 18. C. Helianthi. 
Teliospores cylindrical, apical outlines indistinguishable. 
Apical wail swelling 10-20x. 19. C. Dahliae. 
Apical wall swelling 20-30 u. 20. C. Terebinthinaceae, 
he tribe Senecioneae. : ; 
ai Uiedinie large ; urediniospores thick-walled. 21. C. arnicale. 
VoLUME 7, Part 2, 1907] 85 
