Hi, Stitzelweller,
this problem was solved by Phillip Cribb, Mei Sun, and Gloria Barretto 
in 2004 in the following article:

Cribb, P., M. Sun, and G. Barretto. 2004. Phaius tankervilleae and P. 
wallichii (Orchidaceae), a pair of confused species. Kew Bulletin 59: 
547-554. 

They are in fact similar, but different species.  In summary, P. 
tankervilleae (not "tankervilliae") has somewhat nodding flowers, with 
sepals and petals that are brown inside and white outside, and not very 
pointy.  The lip of P. tankervilleae is not deflexed.  In contrast, P. 
wallichii has yellowish, pointy sepals and petals, and the lip midlobe 
is deflexed.  The spur is also shorter in P. tankervilleae.

I can send you a copy of the article off-line.

-Mario
-- 
Mario A. Blanco
Department of Botany
University of Florida
214 Bartram Hall
Gainesville, FL 32611-8526
U.S.A.

[EMAIL PROTECTED] wrote:
> I use OrchidWiz.  I just entered Phaius tankervilliae and discovered  that it 
> is considered Phaius wallichii!  Jay Pfahl's IOSPE continues to use  Phaius 
> tankervilliae.  I discontinued Phaius grandifolius on my  labels years ago!
>  
> What is the currently accepted name for the species, please?
>  
> For years I've been reading that wallichii is really a  tankervilliae!  I 
> have one of each--yes, some people maintain that  there IS a difference.  
> Through 
> the years, I continued to  keep each plant and pot labeled appropriately!
>  
> Additional comments are welcome.  Thank you,
>  
> Stitzelweller
>
>
>
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