178 SUPPLEMENT TO WELWITSCH's AFRICAN FUNGI. 



darker shades of brown, the zones more marked towards the base. 

 Pores darker than the pileus, up to 8 mm. in depth, shillow 

 towards the margin ; in the dunidiate form about 3 mm. in depth, 

 irreguhirly hexagonal, 2x3-4 mm. in diameter, edges acute ; 

 spores unknown. 



On rotten trunks on the sepulchres of negro chiefs, in woods 

 between Condo and Quisoudo and near Quibinda, Pungo Andougo ; 

 March, 1857. No. 370. 



^cidium Diospyri, n. sp. ^cidia in small sparse groups on 

 slightly discoloured spots, the cells of the leaf blackened and 

 forming a hard ring round the cup, peridium about 160 /x in 

 diameter, with a vei-y delicate whitish wall ; spores irregularly 

 globose, 15-18 /x in diameter, very light yellow, epispore smooth, 

 contents roughly granular. 



On the leaves of Diospyros mesiiiUformis Hochst., near Trombeta, 

 Golungo Alto ; March, 1855. No. 208. 



Phyllosticta Tricalysise, n. sp. Forming rather large grey 

 spots with a reddish-brown margin ; perithecia scattered, puncti- 

 form, small, 150 to 200 x 120 /x; spores oblong-elliptical, colour- 

 less, one-celled, 6x2 /x. 



On the upper side of the evergreen leaves of Tricalysia griseiflura 

 at the back of the Presidium. Mata de Pungo, Pungo Andongo ; 

 Nov., 1856. No. 6. 



Ascochyta Tiliacorae, n. sp. Forming small, black, sub- 

 spherical stromatoid spots on the upper surface of the leaves ; peri- 

 thecia closely grouped, lentiform ; spores elongate, 2-celled, colour- 

 less, 12 to 15 X 3/x. 



On leaves of Tiliacora chrysobotri/s Welw. in the woods of Alta 

 Queta, Golungo Alto ; Dec, 1855. No. 4. 



A. Spondiacearum, n. sp. Forming white spots with a dark- 

 brown margin ; i)Grithecia scattered, small, lentiform ; spores 

 elongate, 17 X 3 /a, colourless, 2-celled, one cell sometimes longer 

 than the other. 



On leaves of Spondias Momhin L. at Mata de Quisuculo, Golungo 

 Alto ; Feb., 1856. No. 173. 



Phyllachora repens Sacc. Syll. Fung. vol. ii. p. 597. Splmria 

 lanaris Welw. Curr. Trans. Linn. Soc. xxvi. p. 283. 



On leaves of various species of Ficus, Golungo Alto. Nos. 74, 

 75, 76. 



On examining these specimens I find that the stroma is super- 

 ficial, and often on both sides of the leaf ; it is formed of brown 

 hyphffi and not, as described by Currey, from the tissue of the leaf. 

 The spores are continuous, broadly oblong- obtuse, and measure 

 10-12 X 5-7 /x. Corda's original measurements for the spores of 

 Sphmia repens, Ic, iv. p. 42, are 15 /x in length. I have, unfortu- 

 nately, no opportunity of seeing his type specimen, but the drawing, 

 I. c. fig. 123, leaves little doubt as to the identity of the two species. 

 Isothea rhytismoides Welw. & Curr., I. c. p. 285 (on leaves of Ficus 

 trachyphylla ; Huilla : No. 141) is also synonymous with P. repeyis. 

 These different specimens form a graduated series, which, as far as 



