The McDougall Herbarium at MNA currently holds 55 botanical type specimens (only 52 are currently displayed here). Type specimens are considered our most valuable collections since they are the specimens that were examined when first describing a species new to science. There are several different classifications of type specimens featured here: 

  • Holotype – The single specimen used to describe a new species that clearly illustrates the features that distinguish the species as unique. 

  • Isotype – A duplicate of the holotype. Many MNA botany holotypes were sent to The Smithsonian Institution herbarium and the isotypes are kept in the MNA Herbarium. 

  • Syntype – Specimens listed in the original description of the species when a holotype was not designated. 

  • Paratype – Other specimens that were used in the describing of the species that were mentioned in the original description. 

  • Topotype – A specimen collected from the same locality as the holotype at a different point in time.  

Found 52 record(s)
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Item SelectionAvailable ActionsImageScientific NameCommon NameType StatusCatalog No.
File: 'B9'
Penstemon angustifolius ssp. venosus D.D. KeckBroadbeard PenstemonParatypeB.9
File: 'B1272_a'
Penstemon angustifolius ssp. venosus D.D. KeckBroadbeard PenstemonParatypeB.1272
File: 'B1723B'
Astragalus sesquiflorus S. Wats.Sandstone MilkvetchTopotypeB.1723B
File: 'B3079'
Astragalus sesquiflorus S. Wats.Sandstone MilkvetchParatypeB.3079
File: 'B3277B'
Dalea whitingi Kearney & PeeblesWhiting's Indigo BushIsotypeB.3277B
File: 'B3341'
Astragalus sesquiflorus S. Wats.Sandstone MilkvetchTopotypeB.3341
File: 'B3772'
Lupinus cutleri Eastw.Cutler's Spurred LupineIsotypeB.3772
File: 'B4144'
Ranunculus collomiae L.D. BensonCollom's ButtercupParatypeB.4144
File: 'B4311'
Gilia polyantha var. whitingii Kearney & PeeblesWhiting's Many-Flowered SkyrocketParatypeB.4311
File: 'B5200'
Ipomopsis multiflora ssp. whitingii (Kearney & Peebles) WilkenWhiting's Many-Flowered SkyrocketIsotypeB.5200
File: 'WACA 0006213_lg'
Gilia polyantha var. whitingii Kearney & PeeblesWhiting's Many-Flowered SkyrocketParatypeB.5320
File: 'B7328'
Astragalus sesquiflorus S. Wats.Sandstone MilkvetchTopotypeB.7328
File: 'B7697'
Galium collomiae J.T. HowellFossil Hill Creek bedstrawIsotypeB.7697
File: 'B12747'
Encelia resinifera ssp. tenuifolia C. ClarkButton BrittlebushHolotypeB.12747
File: 'B14662_a'
Pediocactus bradyi L.D. BensonBrady's pincushion cactusTopotypeB.14662
File: 'B15839'
Potentilla vallicola GreeneBearded CinquefoilSyntypeB.15839
File: 'B16668'
Mentzelia collomiae C.M. ChristySunset Crater BlazingstarParatypeB.16668
File: 'B19449'
Setaria arizonica RomingerArizona BristlegrassTopotypeB.19449
File: 'B19955'
Galium collomiae J.T. HowellFossil Hill Creek bedstrawIsotypeB.19955
File: 'B19963'
Agave arizonica Gentry & J.H. WeberArizona AgaveIsotypeB.19963
File: 'B24117'
Euphorbia aaron-rossii A.& N. HolmgrenMarble Canyon SpurgeSyntypeB.24117
File: 'B24149'
Euphorbia aaron-rossii A.& N. HolmgrenMarble Canyon SpurgeSyntypeB.24149
File: 'B24277'
Flaveria mcdougallii Theroux, Pinkava & KeilGrand Canyon YellowtopsParatypeB.24277
File: 'B24278'
Flaveria mcdougallii Theroux, Pinkava & KeilGrand Canyon YellowtopsParatypeB.24278
File: 'B24279'
Flaveria mcdougallii Theroux, Pinkava & KeilGrand Canyon YellowtopsIsotypeB.24279
File: 'B25179'
Ipomopsis multiflora ssp. whitingii (Kearney & Peebles) WilkenWhiting's Many-Flowered SkyrocketParatypeB.25179
File: 'B26040'
Mentzelia collomiae C.M. ChristySunset Crater BlazingstarParatypeB.26040
File: 'B26831'
Rosa stellata ssp. abyssa A. PhillipsGrand Canyon RoseParatypeB.26831
File: 'B27008'
Purshia X subintegra (Kearney) HenricksonArizona CliffroseTopotypeB.27008
File: 'B28487'
Euphorbia aaron-rossii A.& N. HolmgrenMarble Canyon SpurgeSyntypeB.28487
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