THAXTER. MONOGRAPH OF THE LAIHHLBKX I A< ! I ;\.\\ 
Laboulrexia pkoliferans Thaxter. 
This species presents a plexus of variations, several of which it has seemed <1< irable to distinguish 
by varietal names and some of these like the var. cincta or var. atretic might he considered by sonic per^i is 
as specifically distinct. But although these .seem very constant, for 
exam 
given locality, there are so many of them and they are otherwise so variable thai it has appeared wiser to 
regard them all as representing a single species which is undoubtedly in a veiy plastic condition, and 
from which a number of species are likely eventually to separate themselves. Whether such a « pa ra- 
tion has not actually begun is perhaps a matter of opinion. If we take the well defined African form 
Var. atrata, it might well be considered specifically distinct from the normal form as it occum for instam 
on Asiatic species of Chlcenivs; yet the var. wierposiia on African ChkmH, which approaches atrata very 
closely, becomes identical with the Eastern form on Chkrnius when, as actually occurs in a few individ- 
uals, the blackened septa are absent at the bases of its acessory appendages; while var. divaricate again, 
could hardly be separated from atrata if these blackened sepia were added. 
Among the minor variations which I have seen the following deserve mention. British Museum 
No. 604 on Chlamius pallipes Gebl. from Japan differs in possessing a receptacle the lower part of wliiel 
is very slender, cell I being nearly isodiametric, slender, usually abruptly curved above its base, with a more 
or less well marked prominence distally and anteriorly just below cell II. 
i 
Museum 
fl< 
Berlin Museum No. 930, on Chlamius xanthacrus Wied., from Bengal, is a small form, the distal 
portion of the receptacle relatively large and diverging from the relatively small perithecium. 
British Museum No. 596 on Clamwnms graeUieoUis Jnk. from Turkestan, is a pale form peculiar 
for the characteristic wine-red color of its insertion-cell. 
Hope Collection on Chlamius sp. No. 320, from Ceylon, has copious aee, wj branch. . which are 
hardly divergent, and 750 // in length. 
Minor variations in color, size and form of the receptacle, perithecium and appendages are common, 
as well as in the degree of proliferation in cell V (which is rarely quite normal), the numherof accessory 
appendiculate cells cut oft' rarely exceeding five and usually not more than two in number 
In a few individuals of the normal type (Paris 51, on Chlamius sp., Algeria, and No. I on Eva w 
Africa, the subbasal cell of the receptacle has organized procarps and peritheca, and m one ca i two 
have arisen after a division of this cell. This appears to occur usually when the pnmaiy pentheaum 
aborts for any reason, or is destroyed; but in one instance both primary and secondary peflth ia appear 
to be functional. __ . . , » 
A complete list of the material examined since the publication of my Monograph, and e» .my, of 
the named varieties, is as follows;- British Museum: No. 5S8 on Budema cornea Murr Old . .labar. 
stan, No. 598 on Chlamius spoliates 
No. 603 on C. aucipennis, Port 
lotus Dej., Java ; No. 008 on C 
Collection: No. 20 on Chlaniu 
sp., Africa; No. 87 on Chlamius sp 
lid 
■prd< 
Asia. Hop, Collection : No. 320 on ~- q>., yj™ , , £— -- , , g „„ ;,„„,„„„„,„„ 
Mi.; No. 381 on E.ulnua Er.rho.u, Hope Afrn • »*» ^ '""• . ,, : v„ ,,;»,„„ r. 
ia; 
subl(Evis Chaud 
Schaumii West 
No. 930 on C 
Spain; also on Chlamius velutinus Duft., from Italy? in 
collection. The 
