Each numbered point is a stop: a run of days spent within about ten kilometres. The route between stops is drawn straight; the real course went by sea, by road or on foot. Hollow-looking stops are placed at the centre of an island whose labels carry no coordinates.
East Maui, Hana 12 June 1927 2 specimens, 2 names · placed by island
Bixa orellana 1 , Peperomia leptostachya 1
The specimens from 12 Jun → East Maui, Olinda 14 June 1927 5 specimens, 3 names · placed by island
Marattia douglasii 2 , Peperomia cookiana 2 , Peperomia hirtipetiola 1
The specimens from 14 Jun → Olinda, above, Maui 15 June 1927 7 specimens, 5 names · placed by island
Fragaria chiloensis 3 , Lycopodium venustulum 1 , Myrsine lessertiana 1
The specimens from 15 Jun → East Maui, Olinda 16 June 1927 2 specimens, 2 names
Peperomia cookiana 1 , Peperomia tetraphylla 1
The specimens from 16 Jun → East Maui, Olinda 17 June 1927 3 specimens, 3 names · placed by island
Myrsine lessertiana 1 , Peperomia cookiana 1 , Peperomia membranacea 1
The specimens from 17 Jun → along ditch trail from Idlewild for about 7 miles, Olinda, Maui 18 June 1927 3 specimens, 3 names · placed by island
Hillebrandia sandwicensis 1 , Hydrangea arguta 1 , Perrottetia sandwicensis 1
The specimens from 18 Jun → ~7 mi from Idlewild, along pipeline, Maui 19 June 1927 18 specimens, 6 names · placed by island
Gunnera petaloidea 11 , Hillebrandia sandwicensis 3 , Bryocrumia torrentium 1
The specimens from 19 Jun → East Maui, along Olinda pipeline 20 June 1927 3 specimens, 3 names · placed by island
Dicranum spirophyllum 1 , Hydrangea arguta 1 , Lycopodium venustulum 1
The specimens from 20 Jun → East Maui, Olinda 27 June 1927 2 specimens, 1 name · placed by island
Peperomia cookiana 2
The specimens from 27 Jun → West Maui, Waihee 2 July 1927 6 specimens, 6 names · placed by island
Notelaea 1 , Peperomia latifolia 1 , Peperomia ligustrina 1
The specimens from 2 Jul → N mauka of Ulupalakua, Maui 4 July 1927 2 specimens, 2 names · placed by island
Asplenium adiantum-nigrum 1 , Peperomia cookiana 1
The specimens from 4 Jul → Near Wailuku, Maui 9 July 1927 2 specimens, 1 name · placed by island
Bidens mauiensis 2
The specimens from 9 Jul → W Maui, Near McGregor 10 July 1927 1 specimens, 1 name
Bidens mauiensis 1
The specimens from 10 Jul → W Maui, Pohakea Gulch 11 July 1927 4 specimens, 2 names · placed by island
Bidens micrantha 3 , Gossypium tomentosum 1
The specimens from 11 Jul → Papawai Point, Maui 12 July 1927 9 specimens, 4 names · placed by island
Nototrichium sandwicense 4 , Bidens mauiensis 2 , Myrsine sandwicensis 2
The specimens from 12 Jul → Kaena Valley, along ditch-trail, Maui 14 July 1927 2 specimens, 1 name · placed by island
Dioscorea bulbifera 2
The specimens from 14 Jul → ~7 mi from Idlewild, along pipeline, Maui 16 July 1927 1 specimens, 1 name · placed by island
Gunnera petaloidea 1
The specimens from 16 Jul → West Maui, 1/2 mi N of Keahikauo 21 July 1927 1 specimens, 1 name · placed by island
Doodia kunthiana 1
The specimens from 21 Jul → W Maui, N of Pohakea Gulch, Near Wailuku 23 July 1927 5 specimens, 2 names · placed by island
Bidens micrantha 4 , Lycopodium venustulum 1
The specimens from 23 Jul → Above Olinda, in cattle range, Maui 27 July 1927 3 specimens, 2 names · placed by island
Santalum haleakalae 2 , Fragaria chiloensis 1
The specimens from 27 Jul → Olinda, Maui 29 July 1927 3 specimens, 2 names
Marattia douglasii 2 , Pteris terminalis 1
The specimens from 29 Jul → Olinda pipeline, Maui 30 July 1927 6 specimens, 3 names · placed by island
Hydrangea arguta 4 , Blechnum appendiculatum 1 , Lycopodium venustulum 1
The specimens from 30 Jul → Between Hana and Olinda, Maui 1 August 1927 3 specimens, 3 names · placed by island
Cassytha filiformis 1 , Doryopteris decipiens 1 , Peperomia macraeana 1
The specimens from 1 Aug → Near Haiku, Maui 5 August 1927 1 specimens, 1 name · placed by island
Doryopteris decipiens 1
The specimens from 5 Aug → East Maui, vicinity of Oopuola Stream 7 August 1927 1 specimens, 1 name
Peperomia ligustrina 1
The specimens from 7 Aug → Haleakala, Maui 9 August 1927 3 specimens, 3 names · placed by island
Asplenium adiantum-nigrum 1 , Myrsine lessertiana 1 , Santalum haleakalae 1
The specimens from 9 Aug → Koolau Gap of Haleakala Crater, Maui 10 August 1927 3 specimens, 2 names · placed by island
Rubus macraei 2 , Pellaea ternifolia 1
The specimens from 10 Aug → E Maui, Koolau Gap, Haleakala Crater 11 August 1927 2 specimens, 2 names · placed by island
Bidens campylotheca 1 , Santalum haleakalae 1
The specimens from 11 Aug → Koolau Gap, Haleakala Crater, Fogswept open woods below crest, Maui 15 August 1927 2 specimens, 1 name · placed by island
Santalum haleakalae 2
The specimens from 15 Aug → East Maui, Haleakala, Koolau Gap 17 August 1927 3 specimens, 3 names · placed by island
Myrsine lessertiana 1 , Peperomia cookiana 1 , Rubus macraei 1
The specimens from 17 Aug → East Maui, Hana District, Kaupo Gap, Haleakala, Paliku 20–23 August 1927 · 4 days 4 specimens, 3 names
Santalum haleakalae 2 , Fragaria chiloensis 1 , Peperomia tetraphylla 1
The specimens from 20 Aug–23 Aug → West Maui, Mt. Eke 27 August 1927 8 specimens, 6 names · placed by island
Hydrangea arguta 2 , Peperomia latifolia 2 , Peperomia macraeana 1
The specimens from 27 Aug → West Maui, 3 miles N of Mt. Eke in Honokohau Valley 28 August 1927 1 specimens, 1 name · placed by island
Adiantum raddianum 1
The specimens from 28 Aug → W Maui, Near Mt. Eke, T. Hawaii 29 August 1927 6 specimens, 5 names · placed by island
Lycopodium venustulum 2 , Ilex anomala 1 , Microschizaea robusta 1
The specimens from 29 Aug →