Last revision 19-Oct-2019
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A new species of Paphiopedilum from Yunnan, China is described in a publication of Phytotaxa, by Zhong-Jian Liu, Xing-Yu Liao & Si-Ren Lan. They named it Paphiopedilum erythroanthum.

Paph. erythroanthum Z.J. Liu, X.Y. Liao & S.R. Lan


After re-evaluation of the differences to Paphiopedilum concolor, Leonid V. Averyanov, Olaf Gruß and Harold Koopowitz reclassify Paphiopedilum concolor var. trungkienii as an independent species in an E-Paper publication of Die Orchidee.

Paph. trungkienii (Averyanov, O. Gruß, C.X. Canh & N.H. Tuan) Averyanov, O. Gruß & Koopowitz


A new natural Paphiopedilum hybrid from northern Mindanao, Philippines, is described by Derek Cabactulan, Jim Cootes, Reynold Pimentel and Ibn Dionisio.

Paph. ×deleonii D. Cabactulan, Cootes, Pimentel & Dionisio


Franco Pupulin and Melissa Díaz-Morales describe a new nothospecies from Costa Rica and Panama in an article that is published in Phytotaxa. They named it Phragmipedium ×talamancanum.

Phrag. ×talamancanum Pupulin & M. Díaz-Morales


A new colour form of Paphiopedilum barbigerum from Northern Vietnam is described by Nguyen Hoang Tuan, Chu Xuân Canh and Pham Khuong Duy with the help of Olaf Gruß as Paphiopedilum barbigerum f. duyduongii.

Paph. barbigerum f. duyduongii N.H. Tuan, C.X Canh & P.K. Duy


The description of a new variety of Paphiopedilum villosum from Vietnam is published.

Paph. villosum var. laichaunum Hai & Tuan


A new species of Paphiopedilum from Laos is described by André Schuitema, Sulivong Luang Aphay and Shunsuke Iio. It is called Paph. papilio-laoticus and belongs to the subgenus Paphiopedilum section Paphiopedilum.

Paph. papilio-laoticus Schuitema, Luang Aphay & Iio


A greenish white colour form of Paph. agusii Cavestro & Bougourd is described by Olaf Gruß, William Cavestro and Gus Benk as Paph. agusii f. alboviride.

Paph. agusii f. alboviride O. Gruß, Cavestro & G. Benk


Are you looking for the old PhragWeb website? Use the link in the top right corner of the screen to go there. This Slipperiana website is still very much a work in progress.

Welcome (back).

Again new names have been added. The latest hybrid registrations are added to the website. The vast list of Paphiopedilum hybrids is still a work in progress. Also the programming behind the website has been further extended. For example the scripts and webpages are now ready for Cultivar Groups to be included in the lists. So from now on those entities will be added to the website as well. Also more recently for every hybrid there is now an ancestry tree displayed.



The confusion surrounding the correct parentage of Phragmipedium ×grande/Grande continues as a new article is published (11-Dec-2018) by Franco Pupulin and Melissa Díaz-Morales in the scientific journal Phytotaxa.

Abstract of the article:

"The taxonomic history of Phragmipedium × grande is traced to show that its current treatment as the cross between P. longifolium and P. humboldtii is untenable. According to our interpretation of the holotype and other materials prepared from specimens of the original cross, the name Phragmipedium × grande, as well as its counterpart, the orchid grex Phragmipedium Grande, have to be treated as the cross between P. longifolium and a species of sect. Phragmipedium from South America. The similarity of the flowers obtained crossing P. longifolium with P. caudatum and with P. warszewiczianum prevents, at this stage, a definitive statement about the original parentage of P. × grande, so it is advisable to treat it as the hybridizer originally stated, a cross of P. longifolium with the pollen of P. caudatum. This nothospecies cannot be formed under natural conditions, as the geographic ranges of the parental species do not overlap. The natural hybrid between Phragmipedium longifolium and P. humboldtii, previously reported from Panama and recorded here for the first time from Costa Rica, is described as P. × talamancanum. Full illustrations of the new nothospecies are provided."

The article can be found on the website of Phytotaxa ( and I also found the article on the page of Franco Pupulin on the ResearchGate website (

Species' influence charts.

Species' influence chart example.
With the revision of this website that was uploaded on 08-Feb-2018 came a new feature. On the Ancestry tab of the data page of every hybrid, a pie chart has been added that shows the percentage of influence of the species involved in the creation of the hybrid.

Recent monographs of slipper orchid genera.

Cover of book The Genus Phragmipedium by Guido Braem. Cover of book Slipper Orchid of the Tropical Americas by Phillip Cribb and Christopher Purver. Cover of book The Genus Paphiopedilum 2nd edition by Guido Braem, Guy Chiron and Sandra Öhlund. Cover of book Lateinamerikanische Frauenschuhe by Olaf Gruß
The Genus Phragmipedium.
Guido J. Braem, in collaboration with Eliseo Tesón & Sandra L. Öhlund
Published 2018 by Prof. Dr. Guido J. Braem. (English)
Slipper Orchids of the Tropical Americas.
Phillip Cribb & Christopher Purver
Published 2017 by Natural History Publication and Orchid Digest in association with Royal Botanic Gardens, Kew. (English)
The Genus Paphiopedilum. 2nd Edition.
Guido J. Braem, Guy Chiron & Sandra L. Öhlund
Published 2016 by Bishen Singh Mahendra Pal Singh. (English)
Lateinamerikanische Frauenschuhe.
Olaf Gruß
Published 2014 by Orchideenzauber-Verlag. (German)