.JS() THAXTER. — MONOGRAPH OF THE LABOULBENIACE^ 
Var. i'rolfxa Thaxter. Plate LVII, fig. 11. 
Proc. Am. Acad Arts and Sci., Vol. XXXVIII, p. 29. June, 1902. 
IVrilhceiuin straight or .slightly curved, large and greatly elongated, the body opaque; the neck 
usually elongate, hyaline or translucent. Receptacle as in the type, but usually translucent brownish 
yellow. Branches of the appendages usually more numerous and more slender, the two main branches 
of the inner often consisting of from three to four cells. Spores 70 X 5 p. Perithecia 365-540 X 55 /*, 
including the stalk (90-220 X 30 ft). Appendages 220 p. Total length to tip of perithecium 450-070 n. 
On Mrs-nth risen* tricolor Sharp, Molokai, No. 1239; M. collaris Sharp, No. 1240, Molokai; Mct- 
mmenv mpmlh Sharp, No. 1200, Oahu; and on No. 1235, Maui, in Perkins Collection. 
Var. 8PECTABILIS Thaxter. Plate LVII, fig. 12. 
Proc. Am. Acad Arts and Sci., Vol. XXXVIII, p. 30. June, 1902. 
Perithecium large, long, tapering more or less symmetrically above and below, strongly curved (or 
often recurved) outward throughout its length, including the clearly distinguished hyaline neck; dark 
olive brown, becoming nearly opaque, the black tip slightly distinguished, the lip-edges hyaline. Recep- 
tacle as in the type. Appendages as in the type, but one or both of the primary branches of the inner 
appendage hyaline, contrasting, many celled, and variably elongated through continued terminal pro- 
liferation, black branehlets arising one from each successive cell and alternating on opposite sides of 
the primary branch, often very long, curved upward and inward so as to cross one another, when two 
primary branches arc present, with such regularity as often to form a lattice-work pattern; the series 
often complicated by the production of copious slender hyaline branehlets from the upper side of the 
secondary branches. Perithecia, main body, 105-200 X 40-48. Total len^ .. '. 
On Hawaiian Carebidse from Perkins Collection: No. 1201, on Metromenus ra/iginosus Blk., Hono- 
lulu, Oahu; No. 1179 and No. 1259 (Type); on .1/. mntabilis Blk., Oahu; Nos. 1254 and 1250, on M. 
lattfrom Sharp, Molokai. 
It has been with some hesitation that 1 have separated the three forms included under this species 
as varieties, yet repeated recomparison of my material has only served to convince me that, although 
three species are probably in process of differentiation here, it is better to consider them varieties. L. 
rnuhrnlnla (typiea) might well be separated from L. spectabilis, yet between them lie various modifications 
ot /.. proitxa which cannot be separated on the one hand f™™ *u n +, — „„.i „„ A u_ _xi___ e r „„„„,,„ 
290-3C 
on the other from L. xperta- 
; :• . \" e ; mu>r ' wracn ,s one ot the most beautiful and striking forms in the whole group of Laboul- 
bemales u> characterised by the form and curvature of the perithecium and of its slender more abruptly 
distinguished neck, as well as by the more luxuriant, though variable, development of the branches of 
rts inner appendages. An extreme illustration of this is represented in fig. 12; but in no respect does 
tins branching differ, except in its luxuriance from that of L. prolixa. The latter form on the other 
hand, although d.stmgmshed in general by its larger size, and large elongate perithecium and neck, 
vanes to less sinking iorms wh eh cannot T tKinl, k,. j:„ + :„_. • i. . ., , ,, fe ,, „ . 
of L. eaulieulata. 
. ..om the usually smaller type-form 
Although the habit of the receptacle differs in all three varieties," the appendages do 
— ---. „~ ... v ...an well developed specimens of L. Dimochi, the main axis of the outer appendage, 
■ .i . le prnnary branches of the inner, differing frotn the fact that in the present species the branch- 
ks , "^•""PI» S .tes,,lcs of the main axis, and that tla-se branehlets, inlp,,,/;.™, I. ^ciaM, 
' ,' R ' T '° ° f,C " "'^ '°" g *"''" and "P^y "-eloped unilateral hyaline branehlets. 
host ill 7^r^PT s T t res f; 8 reprt ' sents a '"* from ooifoc«cm ia „ <( ;,;,„, w . ; f ig . 9 1^ 
color bhp.. fig. 12 (I. ipwtaWu) I'ype on Metnmmum mOMli, shp. 
LABODlBENIi Mexicana Thaxter. 
to tla ' 'rt'i,ieh e i a n , rv'' d rT "'■'Si" "? " "' ** """*"« S P«* S «*» "» "1 <*°» «— «— 
iu uit npe winch 1 ha\e distincruisherl as ih* "jx.ju ;■_ *._ » • . . r . . . 
