Parr 2, 1907] COLEOSPORIACEAE 87 
nearly globoid, usually angular, 15-19 by 26-29; wall thin, 1.5, evenly verrucose with 
small papillae. 
III. Telia hypophyllous, densely crowded in orbicular or angular groups, 3-8 mm. 
across, sometimes bounded by the veins, centripetal in development, very small, 0.25 mm. 
or less across, pulvinate, orange-yellow fading to light-yellow; teliospores with wall swell- 
ing 15-20 » thick above ; contents orange-yellow fading to colorless, oblong, 15-21 by 38- 
58, rounded or obtuse at each end, slightly or not narrowed below. 
ON BEGONIACEAE : 
Begonia sp., Jalisco, Michoacan, Oaxaca, Puebla. 
Type collected at Guadalajara, Mexico, September 28, 1903, E. W. D. Holway 5064. 
DISTRIBUTION: Central Mexico. 
5. Coleosporium apocynaceum Cooke, Hedwigia 17: 38. 1878. 
Uredo Amsoniae Cooke, Grevillea 19: 15. 1890. 
O and I. Pycnia and aecia unknown. 
II. Uredinia hypophyllous, scattered, small, 0.3 mm. across, soon naked, orange-yellow 
fading to very pale-yellow, ruptured epidermis rather inconspicuous; urediniospores 
broadly elliptical or globoid, 19-23 by 22-304; wall thin, 1“, verrucose with low, scarcely 
crowded papillae. 
III. Telia hypophyllous, rather evenly and closely scattered over areas 3-8 mm. across, 
or over the whole leaf, roundish, prominent, at first orange-yellow, fading to pale-yellow ; 
teliospores with wall swelling 25-35 above; contents oblong or clavate-oblong, 13-19 by 
39-51 #2, rounded at both ends. 
ON APOCYNACEAE : 
Amsonia Amsonia (1,.) Britton (A. Tabernaemoniana Walt.), Alabama, South Carolina. 
Amsonia ciliata Walt. (A. angustifolia Michx.), South Carolina. 
TYPE LOCALITY: South Carolina, on Amsonia ciliata. 
DISTRIBUTION : Southeastern United States. 
ExsiIccaTI: Rav. Fungi Am. 44, 489. 
6. Coleosporium Plumierae Pat. Bull. Soc. Myc. Fr. 18: 178. 1902. 
O and I. Pycnia and aecia unknown. ; 
II. Uredinia hypophyllous, scattered, 0.3-0.5 mm. across, soon naked, orange-yellow 
fading to tawny-yellow, ruptured epidermis rather inconspicuous; urediniospores broadly 
ellipsoid or obovoid, 19-24 by 26-37%; wall rather thin, 1.5-2, rather coarsely verrucose 
with low deciduous tubercles, 3-5 across, not crowded. 
III. Telia hypophyllous, scattered, round, punctiform, 0.1-0.3 mm. across; teliospores 
with wall swelling 10-204 above; contents fading to colorless, oblong, 10-13 by 26-33 p, 
rounded or obtuse at both ends. 
On APOCYNACEAE: 
Plumiera alba Y,., Guadeloupe. 
Plumiera rubra ¥,., Cuba. . 
TYPE LOCALITY: Guadeloupe, on Plumtera alba. 
DISTRIBUTION : West India Islands. 
ExsiccaT1: Ellis & Ev. Fungi Columb. 22/7. 
7. Coleosporium Ipomoeae (Schw.) Burrill, Bull. Ill. Lab. Nat. Hist. 
2: 217. 1885. 
Uredo Ipomoeae Schw. Schr. Nat. Ges. Leipzig 1: 70. 1822. 
Ce sind ha Melee Link, in Willd. Sp. Pl. 67: 14. 1825. 
Coleosporium guaraniticum Speg. Anal. Soc. Ci. Argent. 17: 95. 1884. 
O and I. Pycnia and aecia unknown. 
II. Uredinia hypophyllous, widely scattered, or somewhat clustered, 0.25-1 mm. across, 
early naked, orange-yellow fading to white, ruptured epidermis usually inconspicuous ; 
urediniospores ellipsoid, 13-21 by 18-27, more or less angular and irregular; wall thin, 
1-1.5 4, closely and noticeably verrucose. 
III. Telia hypophyllous, widely scattered, often confluent, pulvinate, 0.5 mm. or less 
across, deep reddish-orange fading to pale-yellow; teliospores with wall swelling 20-404 
above; contents orange-yellow fading to colorless, oblong, or slightly clavate, 19-23 by 
60-802, rounded or obtuse at both ends. 
