712 



H. varie^iitum, (B. & C.) 



Hysten'um varie.naiiim, B. & C. Grev. IV, p. 12. 

 Hypodi'rma vaiiegitliiHi, Diil)y, Hyst. p. 4.1. 



IiiiiiUe-supcrlicial, sciittcrcil or <»ro<^arioiis, soinctimcs conduiiit. 

 liiifar-clonjratod, siil)ol»tusc, black; lips Hat. closely comiivcnt. tlnii 

 edges soiuctiiues slightly raised, so as to leave a very iiai-row, straight 

 or siiliflexuous cleft. Asci veiT luimite, clavate, sessile. S|inri(liii 

 hyaline, linear, obtuse, inordinate, 48-r)(>x 1^ /«. I'arajiliyses none. 



On dead branches of Viburnum Opulux and various .species nl 

 Anih-omeda, also on AraUa spinom. North and South Carolinii 

 (Havenel). 



H. lufllabrum, (B. & C.) 



Hystrrium ni/HuhriiiH, H. & C. Grev. IV, p. 12. 

 Hypoderma rufihihiHin, Sacc. Syll. 5796. 



"Obtuse, elliptical, growing on a jiallid spot; li]»s i-ufous. Asci 

 clavate. Sporidia shortly fusiform, hyaline, 15 /i long. Sjtoridia very 

 dill'erent from those of neighboring species." 



On twigs oK Acer striatum, South Carolina (Havenel). 



H. Eucalypti, Cke. & Hark. (J rev. XIII, p. 21. 



Epiphylloua, gregarious. Perithecia lanceolate; or linear, eruni- 

 l>ent-super(icial, black; lips rounded, loosely connivent. Asci clavate. 

 S] ..idia inordinate, elongated-fusoid, continuous, hyaline. 30 .\ 3 //. 



On leaves of Buralyptus, California (Ilarkness). 



H. scirpinum, DC. Fl. Fr. p. 1G6. 



ffysieriiim sct'ipiniini, Kr. S. M. II, p. 590. 

 Sph(Xria I^plostroma, Klir. Sylv. Berol. p. 29. 

 Kxsicc. Kze F. Sel. 277.— Rab. Herb. Mycol. II, p. 262.— Thum. M. V. 178. 



Perithecia innate, oblong, straight, depressed, very black, aliout 

 2 X I mm.; lips forming an elevated ridge, ])arallel. finally open. 

 Asci fusoid-clavate, 120-140x15-18 ji, 8-.spored, with abundant lili- 

 fonn p{ira])hyses. S))ondia conglobate, fusoid-bacillate, sti-aight or 

 curved, yellowish-hyaline, 40-50 x 5-6 fi, Sacc; 3G-40 x 4.J-5 /<, Helini. 

 S])ermogoniaI jierithecia [Leptoiitroma scirpinum, Fr.) interniixcd. 

 Perithecia ()rl)icular, umbonate in the center, finally deciduous, 150 // 

 diam. 



On Scirpns vaiidvs, Montezuma marshes, N. V. (Peck). 



Specc. from Peck have asci stipitate, 110-125x10-13 /i, and 

 sporidia 30-35x4-4 J //. 



mm 



