Part 1, 1910| NECTRIACEAE 7 
Spores small, less than 14 long (mostly 7-10 #). 
Perithecia sulfur-yellow-pruinose; on fungi. 11. MW. sulphurea. 
: Perithecia not sulfur-yellow-pruinose ; on cedar bark. 12. N. truncata. 
saat deep-red, ranging from scarlet or blood-red to reddish- 
purple. 
Spores marked with longitudinal striations. 13. NV. rhytidospore. 
Spores not marked with striations. 
Parasitic on leaves of leguminous plants. 14. N. Papilionacearum, 
Not parasitic on the leaves of plants. 
Saprophytic on dead stems of herbaceous plants. 15. WN. Brassicae, 
Occurring on old wood and sphaeriaceous fungi. 
Spores narrow-fusoid ; perithecia mostly entire, on wood. 16. WV. sanguinea. 
Spores broad-fusoid; perithecia laterally collapsing, on 
. . sphaeriaceous fungi. 17. NV. episphaeria. 
Perithecia clothed with well-developed hairs, 
Hairs few, straight, rigid; plants orange or red. 
Perithecia large, about 5004 in diameter, orange; hairs fasciculate. 18. WV. suffulia. 
Perithecia small, 125-150 # in diameter, red ; hairs not fasciculate. 19. WV. consors. 
Hairs numerous, flexuous, giving the plant a woolly appearance. 
Perithecia large ; hairs sulfur-yellow. 20. N. flavociliata 
Perithecia small; hairs hyaline, white to the naked eye. 
Spores ellipsoid. 21. WV. lactea, 
Spores allantoid. 
Spores 5X 24; plants on slime-moulds. 22. N. Rexiana. 
Spores 6-7 x 1.5~-2 2; plants on wood. 23. NV. squamulosa. 
1. Nectria Peziza (Tode) Fries, Summa ‘Veg. Scand. 387. 1849. 
Sphaeria Peziza Tode, Fungi Meckl. 2: 46. 1791. 
? Peziza hydrophora Bull. Hist. Champ. Fr. 243, 1791. 
Peziza vulpina Cooke, Hedwigia 14: 82. 1875. 
? Nectria lasioderma Ellis, Am. Nat. 17: 194. 1883. 
Nectria rimincola Cooke, Grevillea 11: 108. 1883. 
?Nectria Umbellulariae Plow. & Hark. Bull. Calif. Acad. 1: 26. 1884. 
Dialonectria vulpina Cooke, Grevillea 12: 83. 1884. 
Nectria perforata Ellis & Holway; Arth. Bull. Geol. Nat. Hist. Surv. Minn. 3: 33. 1887. 
Nectria vulpina Ellis & Ev. N. Am. Pyrenom. 103. 1892. 
Nectria betulina Rehm, Ann. Myc. 3: 519. 1906. 
Perithecia superficial, scattered, gregarious, or occasionally crowded, globose or sub- 
globose, usually collapsing from the top, becoming pezizoid, at first clothed with a scant 
covering of delicate, white mycelial threads (no true hairs) which disappear with age, 
leaving the perithecia smooth or, in very old specimens, slightly rough and furfuraceous, 
250-500 (mostly 300) in diameter, varying in color from deep-orange to pale-yellow, 
darker in dried specimens but fading in weathered specimens; ostiolum minute in young 
specimens, just visible, and in older forms depressed and inconspicuous; asci cylindric or 
clavate, 50-75 X 5-6, 8-spored; spores broadly ellipsoid, obliquely 1-seriate or crowded, 
becoming partially 2-seriate, thick-walled, 1-septate, not constricted, with a large, conspic- 
uous oil-drop in each cell, 10-14 & 4-6 » (mostly 105); paraphyses short, branched, not 
conspicuous. 
On decaying, decorticated wood; more rarely on bark, fungi, and old hemp cloth. 
TYPE LOCALITY: Mecklenburg, Germany. _ . : ; 
DISTRIBUTION: New York to Ontario, North Dakota, Louisiana (and California?) ; also in 
Europe. 
eons Tode, Fungi Meckl. p/. 15, f. 222; Bull. Herb. Fr. pl. 410, f. 2; Trans. 
Linn. Soc. 22: pl. 57, f. 44; Berk. Outl. Brit. Fungol. /. 24, f. 6; Grev. Scot. Crypt. Fl. p/. 186, 
7.2; Mycologial: £1.47, f.3; pl.5, f. I. . 
ExsiccaTr: Rav. Fungi Am. 647; Ellis, N. Am. Fungi 774; Wilson & Seaver, Ascom. 16. 
2. Nectria diplocarpa Ellis & Ev. Proc. Acad. 
Phila. 1890: 244. 1890. 
Perithecia gregarious or scattered, occasionally several closely crowded, superficial, 
subglobose, 250 in diameter, nearly smooth, collapsing when dry and becoming pezizoid, 
flesh-colored ; asci clavate, 40-50 < 8-12; spores ellipsoid, 8-12 4-5 u, 1-septate, hya- 
line. In addition to the ordinary ascospores, there are other large, hyaline, 1-septate, spore- 
like bodies 30-45 18-25 u present in the perithecia, 
On thallus of foliaceous lichens (? Parmelia). 
TYPE LOCALITY : Farmington, New York. 
DISTRIBUTION: New York to Missouri. 
ILLUSTRATION : Mycologia 1: p/.5,/. 2. 
