U)2 THAXTER. — MONOGRAPH OF THE LABOULBENIACE.E. 
i jmclnv * spimf is Tli;i\t<T. Figs. 25-26. Type forms of mature individuals, X 290. Figs. 27-28. Two 
pores, X 1100. Fig. 29. I )oiul of antheridial appendage, X 1100. 
rmatomg u purpura* Tlmxter. Figs. 30 31. Typical form of mature individuals, X 290. Fig. 32. A 
common \ iation, X 200. Fig. 33. A spore, X 1100. Fig. 34-35. Detail of tip of peritheciuni from different 
poillta of view, X 1100. Fig. 36. Detail of ant heridial appendage, X 1100. 
, tmatomyce* Scaptomjftm Thaxter. Figs. 37-39. Mature individuals. Fig. 37 from California, the rest from 
Maioe, X ft Fig. 40. A spore, X 1 100. Fig. 41. Detail of ant heridial appendage, X 1100. 
PLATE XL VII. 
Sligmatorn t/n Lirrumina Thaxter. Fig. 1. A spore, X 1100. Fig. 2. Small stout form of mature individuals, 
X 30. Figs. 3 4. Two mature individuals of the typical form, x 290. Fig. 5. Detail of antheridial appendage, 
X 625. Fig. 6. Matuie individual of Californian form, X 290. Fig. 7. Young individual: a triehoygne at the 
ighl with adherent anthero2oids, X J 100. 
Stiymatomyi I Pajmarviu Thaxter. Fig. 8. A spore, X 1100. Figs. 9-12. Mature individuals illustrating 
variational X 290, Fig. 13. Detail of antheridial appendage, X 1100. 
Stvjmatomya dul>iu8 Thaxter. Fig. 14. A Spore, X 1100. Figs. 15-17. Mature individuals, X 290. Fig. 
18. Detail of antheridial appendage, 1100. 
Stvpnatomycrs miawidrus Thaxter. Fig. 19. A spore, X 1100. Figs. 20-21. Mature individuals, X 290. 
Figs. 22 23. I M ail of antheridial appendages from opposite sides, X 1100. Fig. 24. Tip of peritheciuni, X 1100. 
SHumatomyt rugosus Thaxter. Figs. 25-26. Type form from Ralum, X 290. Fig. 27. Detail of antheri- 
diiim from Ralum form, X 1 100. Fig. 28. Mature individual from Puyallup, Washington, X 290. 
Stigmatomt/ces humilis Thaxter. Figs. 29-30. Two mature individuals, X 290.. Figs. 31-32. Detail of an- 
theridial appendages, X 1100. ■ 
PLATE XLVIII. 
Arthrvri mehw Cydtrpodim Thaxter. Fig. 1. Mature individual showing lateral view of ascogenic cells: the 
rhisotdfl broken from t he bauatorial cell, X -'90. Fig. 2. Mature individual showing its relation to the integument 
and body cavity of the host; a few of t he rhizoids which formatangled mass indicated semidiagrammatically, X 290. 
Fig. 3. Detail of ant heridial appendage, X 625. Fig. 4. Detail of tip of perithecium seen partly in opt ical section 
showing the four papilla; which surround the ostiole, X 625. Fig. 5. Detail of tip of perithecium showing outer 
bifid protuberano . X 625. Fig. 6. A spore, X 625. 
Arthrorhynchus X,,, ritna (Feyritsch.). Fig. 7. Mature individual showing its relation to the integument of 
host ; t he perithecium shown in optical section except at its tip, X 290. Fig. 8. Mature individual, the perithecium 
wn in surface view, X 290. Fig. 9. Detail of antheridial appendage, X 625. Fig. 10. Tip of perithecium in 
detail. X 625. 
Arth ynckw Eucamj /toda: Thaxter. Fig. 11. Mature individual from which the rhizoidal apparatus has 
been broken; the asci are seen end on in several rows the ascogenic cell lying behind, X 290. Fig. 12. Tip of peri- 
theaumm detail, X 625. Fig. 13. Detail of tip of perithecium seen in optical section, X 625. Fig. 14. Detail of 
an t he n ( 1 1 a 1 a ppe ndage . 
PLATE XLIX. 
3. 
T.ratomy, Zeaiandica Thaxter. Figs. 1-2. Anterior and posterior viex 
Portion of an app. dage with branchlet bearing two antheridia X 1100. 
m ** — — - J t \ 1 * J ft 1 • ^^^ • ^— — 
" "" ' Figs. 4-5. Mat ure individuals, X 290. 
Fig 
Thn\t 
T, ratomyoM petioiatu, Thaxter. Fig. 7. Mat ure individuals, X 290. 
appendtge^T nOO*** '***"' "^ ®~ 9 ' Tuo mature indivi duals, X 290. Fig. 10. Detail of antheridial 
DetsflTZS r nmpf !° m lh:ixter - **». H-12. Two individuals not quite mature, X 280. Fig. 13. 
Detail of antheridial appendage, x 1100. 
indivS X rfT^ l Th i Xter - * 14 ' Detail of antheridial appendage, X 1100. Fig. 15. Mature 
«fa^ll££7 > i ? V 16 - MatUfe indhidual 0f **■> *<™> X 290- Fig. 17. Unisexual indi- 
Mdual (male) illustrating partial atrophy in one member of a spore pair, X 290 
appenl'^e X m"^"' ^^ K *' 18 ' Mature individual, X 290. Fig. 19. Detail of antheridial 
tigmatom^m Venr Zllt / ir Thaxter. Figs. 20-21. 
uals 
Ilaeri 
290 
Fig. 22. Detail of antheridium, X 1100. Figs. 23-24. Two mature individ- 
