318 THE JOUKNAL OF BOTANY 



fusco. Sporulis subclavato-fusoideis, sursum rotundatis v. attenuatis, 

 deorsum acutatis, 5-9-septatis, olivaceo-fuscis, eguttulatis, 60-80 X 7/^. 

 (Tab. 550. f. 6.) 



Hah. in foliis emortuis TyphcB latifolice, Killermont, Dumbai'ton- 

 shire (Boyd), Oct. 



Tbe spores stand erect in a single layer within the semi-transparent 

 pjcnidium, all springing from the base, and ± parallel or converging 

 towards the ostiole. The walls and septa of the spore are consjiicuous 

 and about 1 ^ thick, olive-fuscous in colour, while the lumen of each 

 loculus is pale-greenish. Oudemans' species was on stems of T. an- 

 gnstifolia, the spores measured about 50 X 7 /x and had 5 septa, but 

 their form and arrangement were the same as in this variety. This 

 species, and other similar ones such as H. tenella Schrot., and 

 H. mollis Grrove, which have a wall tending to be " pseudopycnidial," 

 should form a distinct section of the genus. 



284. Hendeesonia tagans Fckl. Symb. Myc. p. 392. Sacc. 

 Syll. iii. 419, f . cuspidati f. nov. 



Pycnidiis gregariis, raaculis pallidis insidentibus, atris, globosis 

 oblongisve, prominentibus, 200-250 /it long., epidermidem ore irregulari 

 rumpentibus ; contextu olivaceo, crassiusculo, at molli, e celluHs 

 parvulis parenchymaticis conflato. Sporulis oblongo-ovalibus, utrinque 

 rotundatis, subinde curvulis, 13-17 X 5|-7 /i, 3-septatis vel interdum 

 ajqualiter 2-septatis, dilute olivaceis, non constrictis, sporophoris line- 

 aribus subpersistentibus et sporis longioribus suffultis. 



Hah. in caulibus emortuis Polygoni cuspidati, Edgbaston, Bir- 

 mingham, Maio. 



Very rarely there is a single longitudinal septum. Spores, as 

 usual, at first colourless, then pale olive, continuous, then 1 -septate, 

 equally or unequally 2-septate, and finally 3-septate. This species is 

 distinguished from other triseptate forms of the same genus by its 

 much paler spores, which do not tend in the least to be brown ; 

 the linear and rather persistent sporojihores are also a marked 

 feature. 



285. Stagonospoea htgeophila Sacc. in Malpigh. 1899, xiii. 

 22, f iii. 2 ; Syll. xvi. 947. Var. vermifoemis, var. nov. 



Maculis amphigenis, parvis, marginalibus, rotundatis, albido- 

 ochraceis, margine fulvo distincto. Pycnidiis plerumque hypophyllis, 

 sparsis, paucis, lentiformibus, aureo-f ulvis, nigrescentibus, 120-220 ^ 

 diam., epidermide tectis, dein poro erumpentibus ; contextvi tenuis- 

 simo, pallido, circa porum obscuriore. Sporulis vermiformibus, 

 cvu'vulis, utrinque attenuatis, sed apice ipso rotundatis, 3-septatis, 

 minute guttulatis, plerumque ad septa constrictis, primo hyalinis, 

 dein flavidis, subinde parva mucosa appendicula utrinque instructis, 

 tandem effluentibus globulosque melleos supra porum formantibus, 

 25-32 X 4-5 /i. (Tab. 550. f . 7.) 



Hah. in foliolis viventibus Oxalidis Acetosellce, Dairy, Ayrshire 

 (Boyd), Aug. 



Differing from the type in the strongly constricted and larger 

 spores. Mr. Boyd remarks that the spots were not uncommon, but 



