THAXTER. — MONOGRAPH OF THE LABOULBEM A( ] K. .M7 
X 50-00 fi, including the stalk (40 ft). Receptacle 220 X GO 70 /l Appendages including brand 
200-360 ft. Total length to tip of perithecium, average, 500 fL 
On the elytra and prothorax of Galerita oarbonaria Mannerh., Brazil; Berlin Museum, No. «K10. 
This species, as I have noted above, may prove to be nothing more than the ordinar; (vpu I condition 
considerable variation culminat in the form described /,. / 
form 
perithe 
cell arrangement of ii r<rcj »(acle and 
As mav l>< seen from tin illustration: 
forms 
their provisional separation. Though quite unlike it in other r< pects i. / >'plrxa n mblefl /- triorAinata 
in the free vertical development of its primary appendages, and their diver; n«< which is u< ally wdl 
marked. 
Laboulbenia decipiens Thaxter. Plate LXIV, figs. 11 12. 
Since it was originally described, a considerable amount of material of this apeeii has Ihui examined 
from various localities, as well as additional specimens from the original .source. The original figure 
represents the maximum development of older individuals, in which the peritbedum mav h« ome a .lark 
olivaceous brown; but in general the brown col ... 
shades. There is considerable variation in the suffusions of the receptacle, which mav l« marl h\ alm- 
as well as in the prominence of the opacity of the basal cells of the appendag< . A reexamination of the 
specimen from which the original figure was drawn, in which the apjnmdag • were badly brok D and 
confused, shows further that the drawing is incorrect in that it represents the third and fourth branch, s 
of the inner appendage as of the sterile type. As a matter of fact in well developed specimens four, or 
even five, of the lower branches of the inner appendage may be antheridial, and in ordinary ca - tin n 
arc at least three such antheridial branches. 
In South America the species varies to a usually smaller and more olivaceous form. fig. 12, and s|>c< i 
mens from three sources on the upper Amazon, fig. 11, tend to vary, in that cells 111 Y are replao d by 
two cells; but individuals occasionally occur in this material having the normal Dumber and arrangement 
The receptacle apparently never becomes elongate and is often very short and compact. '1 h- twist in 
the perithecial wall-cells is always pronounced and characteristic, although n might readily In- overlooked 
in paler specimens. The appendages in smaller forms are apt to I, come more elongate than n, the lar . 
and mav reach a length of 300 fi. An examination of over one hundred and fifty specunen hows an 
extreme' variation in length from 675 ji in one specimen, to 225 ,t, the Ama/.on specimens being usually 
smaller on the average. • . 
Lahou/bmia Argentineans described by Spegazzini in the Anale. drl>lu.o Nae.onal de Hu«-,,, A.re^ 
Tomo YI1I (Ser. 3a, 1. 1) p. 79, of which the author has kindly furnished me an original sketch, ap] a, 
to be one of the forms of the present species. Although it was described as occurring on a species ol 
Bracking there seems to have been confusion as to the nature of the host, wh-h va, ,.«h lltOe doubt, 
the common GaUriia of middle Argentina. The types have unfortunately been fest, so that t re is no 
way of verifying the above reference. As sketched, the tip of the stalked penthecium .m more I.I.... , fe 
spiral wall -eel Is are 
form 
though evidently broken, the antheridia large and sessile, the receptacle however, just as ,n tvpnal 1 
conjusa. The original deseription 
species from it. 
be Quite impo ible to <I< term 
The sources of the additional material of L. decern, stove re em, I to arc- a. fotows. C k N. < 
Museum; on Gofer*, nigra Chev., Paso Antonio, Guann.ala; also No. I , M«*« K Br., d ■ 
the British Museum No 708, on O.aquitoMi. Chd.,V«m Paz, (-stem. ■; J^*/^* 
Dej., Amazon; No. 957 on G. porcata Kl.. Coneta, Mi No. 0,3 on G -k te- ■ -< - ■ 
Haiti; No. 958 on G. mclanaria Eriehs, British Guiana; No. 961 on Gaknta sp., Cotomta, No. M6 
Galerita sp., Sierra Geral, Brazil. 
