Forth Fast oh.,- Mas*.' Xuly 10th,. 19P1. 
My dear T'r. Sbhleehter: 
T have practically completed a short paper on 
Fog'onia and allied genera for "Fhotfora". 'Although I air dealing' chief¬ 
ly with the species of Few England and the 1 range 1 covered by Cray's 
Manual I find that it is necessary to base conclusions on a more' ex¬ 
tensive 1 representation of the species. Ve< might, append tc this paper 
under TWphora a joint publication to establish new combinations if 
you approve, of such a plan. This would have* to be brief,, perhaps a page 
or two. 
My investigations lead mei to the conclusion 
that Fogonia proper should only include those species that have, simple 
pollen grains,! such as Pogbni'a oph-iog'lcssoidef?,- P. japoniea,< P. parvula 
and F. yunnanensjs. The last two species T name as possibilitien. For 
F. parvula T should like to have- your confirmation as to pollen charac¬ 
ters because- T have, not seen any specimens. You might send me a tracing' 
of' this. Teo'triu Includes two species. TsotrJ.k af finis is an extremely 
rare plant. I' have only s en frrsh specimens onc-e-! Tn such large- herbaria 
as these at Washinpipn and ft. Louis there is no material and ever the 
specialized herbarium of the- few Fngland botanical F'lub lacks a sheet, of 
this rare- thing. T" am. sending' you e tracing of this species to show the d 
details of the flower. ’ r hr original drawing was made from Virginian mater 
ial and will be reproduced in irv paper on Fogonia, 
rieistes,-T think;,* should be taken up for Fop- 
on! a divaricate and the tropical species that, are allied. Tt seems to me 
that P. crivaribjata passes clearly intp the genus deletes. Triphora prop¬ 
er includes the species that, have the* extine, of the pollen tetrads pitted 
or reticulated and pr’Vagatee by means of very peculiar tuberous under¬ 
ground stems. Fsilochllus T shall accept as a section of Triphora al t houp’ 
the gynostemium and rcot system seem to remove it quite clearly from 
Futriphora. Triphora macrophyll®. is the type of the- section as T under¬ 
stand it,; and agrees with Triphora in having' reticulated pollen tetrads. 
It differs from Triphora in having a mobile anther and in its very differ 
ent root system. 
The- following key appl ies to the- genera as far 
as the- United dates flora is concerned and may need modification if 
generally applied. How much it should be- modified T am not now sure as X 
have net yet studied all of the- species that, enter into the. discussion, 
my interest just at pr’ee-ent being' in the species of the- United 'States. 
"Perhaps you can from your studies break down the characters assigned when 
the entire alliance- is arranged. 
