Aug., 1887.] 
RRABDOSPORAS OF NORTH AMERICA. 
8«J 
Rhabdospora, Mont. Sylloge III, p. 578. 
Perithecia innate-erumpent, globose or depressed, brown or black, 
growing mostly without spots on branches or stems and not ou leaves. 
1. Rhabdospora allantoidea (B. & C.), Sacc. Sylloge III, p.586; 
Septoria allantoidea , B. & C., N. A. Fungi, No. 442. 
“ Spots pallid, elongated; sporules slightly sausage-shaped (oblong), 
15—12 P long.” On stems of Medicago sativa. Pennsylvania. 
2. Rhabdospora breviuscula (B. & C.), Sacc. Sylloge III, p. 580; 
Septoria breviuscula , B. & C., N. A. Fungi, No. 450 bis. 
“Epidermis elevated by the perithecia; sporules sausage-shaped, 
twenty-five P long.” On branches of Robinia. South Carolina. 
3. Rhabdospora continua (B. & C.), Sacc. Sylloge III, p. 593; 
Septoria continua , B. & C., N. of N. A. Fungi, p. 11, No. 444. 
“Perithecia scattered, hidden by the epidermis, a little prominent; 
sporules filiform, nearly straight, basidia half the length of the sporules.” 
On the scapes of Plantago major. Pennsylvania. 
4. Rhabdospora decipiens (B. <& C.), Sacc. Sylloge III, p. 582; 
“ Septoria decipiens , B. & C., N. A. Fungi, No. 445. 
“ Perithecia at last uncovered ; sporules slender, long, flexuous.” 
On whitened twigs of Lonicera. South Carolina. 
5. Rhabdospora Dianne (B. & C.), Sacc. Sylloge III, p. 586; 
Septoria Diance , B. & C., N. A. Fungi, No. 445 bis. 
“Perithecia flattened, large; sporules curved, long, nucleolate, acute.” 
On branches of unknown tree. New England.” 
6. Rhabdospora Falx (B. & C.), Sacc. Sylloge III, p. 582; Sep¬ 
toria Falx , B. et C. Notice, N. A. Fungi, p. 76, No. 446 bis. 
“Spots dull white or none; perithecia brown, black around the ostiola, 
globose, large, erumpent, densely gregarious, numerous ; sporules hya¬ 
line, filiform, continuous, not guttulate, 18—20 x 2—24 p ; basidia hyaline, 
straight, 12—16 x 2—21 p.” On branches of Vitis. South Carolina. 
7. Rhabdospora iiedeomina (Pk.), Sacc. Sylloge Ill, p. 590; 
Septoria Iiedeomina, Peck, 33d Rep. N. Y. S. M., p. 25. 
“Spots none; perithecia black, flattened, scattered, inconspicuous, 
120—140 p in diameter; sporules hyaline, filiform, strongly curved, 30—40 
p long.” On dead calyx stems of Hedeomapulegioides. New York. 
8. Rhabdospora iielianthicola (C. & II.), Sacc. Sylloge III, p. 
592; Septoria Iielianthicola , C. & Hark., Grev. IX, p. 6. 
“Perithecia black, semi-immersed, forming black spots; sporules 
linear, straight or flexuous, colorless, 30—35 x 1 p” On stems of Ileli- 
anthus. California. 
9. Rhabdospora interrupt a (B. et C.), Sacc. Sylloge III, p. 583 ; 
Septoria interrupta , B. et C., N. A. Fungi, No. 446. 
“Perithecia scattered ; sporules linear, flexuous, multinucleate, fifty 
P long.” On branches of Viburnum Opulus. Pennsylvania. 
