Handle all IPNI names, often infragenerics

[mdoering]

Looks like IPNI has also lots of names that do not parse properly:

• [x] Aeonium nothosect. Leugalonium
• [x] Narcissus nothoser. Dubizettae
• [x] Serapias nothosubsect. Pladiopetalae
• [x] Rubus nothosubgen. Cylarubus
• [ ] Malus nothogrex Prunifoliae
• [ ] nothosubtrib. Pachynyctocereinae
• [ ] linea Rebutiae
• [ ] Veronica Gruppe Pellidosperma
• [ ] Abies genitor Setistrobilus
• [ ] Abies subgenitor Setistrobilus
• [ ] Abies agglom. Sibiria
• [ ] Anthurium scherzerianum var. ville de gand Hort
• [ ] Artemisia cycl. Junceum
• [x] Pinus suprasect. Taeda
• [x] Pinus suprasect. Pseudo-strobus

[mdoering]

Gruppe, genitor, agglom, linea are all made up ranks, to know what they mean one needs to find the original publication and see what the author says about it, and where it should be placed. Anybody can make up a rank if they choose, this is in the Code under Art. 4 , in particular:

4.3. Further ranks may also be intercalated or added, provided that confusion or error is not thereby introduced.

[mdoering]

Suggest to try to parse these as Other rank if possible, potentially in a dedicated regex which allows for Capitalized "species" epithets

[mdoering]

see also #18