376
263. ASCOMYCES, Mont. and Desm.*
Parasitic. Receptacle none. Asci forming a thin, pulverulent
stratum, mixed with moniliform threads.
1. bullatus, B. On pear-leaves.
3. deformans, B. On peach-leaves, causing one form of blister.
3. Ti-ientalis, B. On leaves of T. Europma.
4. Juglandis, B. (Gymnosporium leucospermum, On walnutleaves.
Order 24. TUBEBAOEL
Hypogseous. Hymenium waved and sinuate, often intricate
and closely packed.
264. TUBER, Mich.
Asci short, saccate, disposed in sinuous veins. Sporidia
elliptic, reticulate, often echinulate. Peridium warty or tu-
bercled, rarely smooth, without any definite base.
1. brumale, Mich.; Ann. Nat. Hist. t. 18. p. 80: {no. 330.)
3. aestivum, Vitt. (Plate 33, fig. 3.) The common truffle, of our
markets.
3. macrosporum, Vitt. {no. 580).
4. bituminatum, B. and Br. {no. 586).
5. rufum, Pico {no. 332).
6. scleroneuron, B. and Br. {no. 583).
7. nitidum, Vitt. {no. 321).
8. puberulum, B. and Br.; Ann. Nat. Hist. I. c. p. 81.
9. dryophilum, Tul. I.e. p. 80.
* This appears to be the lowest form under which Discomycetes can appear,
the way being made for it by Propolis. In outward aspect it has little resemblance
to more typical genera.
265. CHOIBOMYCES, Vitt.
Common integument, even. Base definite. Asci clavate.
Sporidia spherical.
1. meandriformis, Vitt.; Ann. Nat. Hist, xviii. 80; Sow. t. 310.
266. AMYLOCARPUS, Curr.
Common integument thick, convolute. Asci soon absorbed,
saccate. Sporidia globose, clothed with radiating threads,
amylaceous.
1. encephaloides, Ourr. Pro. Roy. Soc. Jan. 1858. On chips, Swansea.
267. PACHYPHLCEUS, Tul.
Common integument warty, opening by a terminal aperture.
Base distinct. Asci clavate. Sporidia spherical.
1. melanoxanthus, Tul. {no. 319).
2. citrinus, B. and Br. ; Ann. Nat. Hist, xviii. p. 79.
3. conglomeratus, B. and Br. I. c.
268. STEPHENSIA, Tul.
Common integument fleshy, cottony. Base distinct. Hymenium
intricate. Asci cylindrical. Sporidia globose, even,
at length verrucose.
1. bombycina, Tul. {no. 316).
269. HYDNOTRYA, B. and Br.
Common integument minutely papillose, not distinct. Hymenium
complicated with gyrose lacunae, leading to the surface.
Asci oblong. Sporidia globose, tuberculate.
1. Tulasnei, B. andBr.; Ann. of Nat. Hist, xviii. p. 78.
270. HYDNOBOLITES, Tul.
Integument replaced by white, evanescent down. Hymenium
r