478 NORTH AMERICAN FLORA [VoLuME 7 
ness, especially in size of spores and thickness of wall. Urediniospores borne singly on 
pedicels, the length less than twice the breadth; wall colored, occasionally laminate, echin- 
ulate, with the pores variable in number and position. 
Telia erumpent, definite, on a limited or diffused mycelium. Teliospores free, pedicelled, 
one-celled, sometimes germinating in the sorus at maturity; wall colored or colorless, smooth, 
with one apical pore. 
Type species, Uromyces Glycyrrhizae Magn. (on Glycyrrhiza lepidota). 
Host belonging to family Fabaceae. 
Uredinia and telia from a limited mycelium. 1. K. yurimaguasensis, 
Uredinia and telia from a diffused mycelium. 
Urediniospores with 2 pores. 2. K. Glycyrrhizae. 
Urediniospores with 5 or 6 pores. 3. K. hyalina. 
Host belonging to family Convolvulaceae. 4. K. gemmata. 
Host belonging to family Heliotropiaceae. 5. K. dolichospora. 
Host belonging to family Carduaceae. : 
Urediniospores with 3 pores. 6. K. pressa. 
Urediniospores with 2 pores. 
Urediniospore-wall thin, 1-1.5 p. 7. K, Montanoae. 
Urediniospore-wall thicker, 1.5—-3 pu. 8. K, Bidentis. 
1. Klebahnia yurimaguasensis (P. Henn.) Arthur. 
Uromyces yurimaguasensis P, Henn. Hedwigia 43: 157. 1904, 
O. Pycnia epiphyllous, crowded in small groups 0.3-0.5 mm. in diameter, opposite the 
uredinia, conspicuous, dark-brown, ptunctiform, globoid, 80-144 » in diameter by 103-1444 
high; ostiolar filaments 64-107 y» long, not projecting much beyond the ostiole. 
II. Uredinia hypophyllous, scattered or crowded in groups 0.5—-1 mm. across, round 
0.1-0.3 mm. in diameter, early naked, pulverulent, cinnamon-brown, ruptured epidermis evi- 
dent; urediniospores with pores in optical section appearing triangular, 23-27 4 wide, 
with pores in surface view obovoid, 23-24 » wide, from above elliptic; wall cinnamon-brown, 
1-1.5 » thick, moderately and strongly echinulate, the pores 2, approximately equatorial, 
in the opposite angles of the spore. 
Ill. Telia hypophyllous, scattered, round, 0.2-0.5 mm. in diameter, early naked, some- 
what pulverulent, chestnut-brown, ruptured epidermis rather inconspicuous; teliospores glob- 
oid or broadly ellipsoid, 19-23 by 19-25 4; wall cinnamon-brown, 1 » thick, sometimes thickened 
up to 3 » at apex, smooth; pedicel colorless, up to 30 u long. 
On FABACEAE: 
Clitoria arborescens Ait., Panama. 
TYPE LOCALITY: Rio Huallaga, Yurimaguas, Peru on Clitoria sp. 
DISTRIBUTION: Panama; also in South America. 
2. Klebahnia Glycyrrhizae (Rab.) Arth. Résult. 
Sci. Congr. Bot. Vienne 345. 1906. 
Uredo Leguminosarum Glycyrrhizae Rab. Flora 33: 626. 1850. 
Uromyces Glycyrrhizae Magnus, Ber. Deuts. Bot. Ges. 8: 383. 1890. 
Caeomurus Glycyrrhizae Kuntze, Rev. Gen. 33: 450. 1898. 
O. Pycnia mostly hypophyllous, sometimes epiphyllous or caulicolous, numerous, from 
a diffused mycelium, irregularly and extensively scattered over large areas or sometimes sparsely 
scattered between other sori, noticeable, yellowish or cinnamon-brown becoming chocolate- 
brown, conic or flask-shaped, 100-112 » in diameter by 85-140 » high; ostiolar filaments free 
or somewhat agglutinated, 50-80 » long; pycniospores usually globoid, sometimes ellipsoid, 
5 by 5-8 yu. 
II. Uredinia mostly hypophyllous, sometimes epiphyllous or caulicolous, numerous, from 
a diffused mycelium, extensively scattered over large areas, frequently crowded, roundish, 
0.2-0.5 mm. across, early naked, pulverulent, dark cinnamon-brown, ruptured epidermis 
evident; urediniospores with pores in optical section oblong, 13-17 u» wide, with pores in surface 
view globoid or obovoid, 23-32 by 24-32 »; wall dark cinnamon- or chestnut-brown, 1-2 u 
thick, finely and moderately or sparsely echinulate, the pores 2, equatorial, opposite. 
III. Telia mostly hypophyllous, sometimes epiphyllous or caulicolous, numerous, ex- 
tensively scattered over large areas, frequently crowded, roundish, 0.2-0.8 mm. across, early 
