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.
Pipe Line Trail, Maui 18 June 1922 1 specimens, 1 name · placed by island
Kadua affinis 1
The specimens from 18 Jun → Ulupalaleua, Maui 23 June 1922 1 specimens, 1 name · placed by island
Antidesma pulvinatum 1
The specimens from 23 Jun → Canada; Alberta; Banff; Tunnel Mt. 4 July 1922 1 specimens, 1 name
Bromus pumpellianus 1
The specimens from 4 Jul → Glacier; B.C., Canada - Moraine 13 July 1922 1 specimens, 1 name
Phleum alpinum 1
The specimens from 13 Jul → Hauula, Hawaiʻi Island 1 August 1922 2 specimens, 2 names
Cyclospermum leptophyllum 1 , Rubus rosifolius 1
The specimens from 1 Aug → Haleiwa, Oʻahu 11 August 1922 1 specimens, 1 name
Talipariti tiliaceum 1
The specimens from 11 Aug → Hauula, Oʻahu 16 August 1922 5 specimens, 5 names
Abutilon grandifolium 1 , Aristolochia littoralis 1 , Desmodium uncinatum 1
The specimens from 16 Aug → Haleiwa, Oʻahu 17 August 1922 1 specimens, 1 name
Schinus areira 1
The specimens from 17 Aug → Haleiwa, Oahu 20 August 1922 1 specimens, 1 name · placed by island
Vitex rotundifolia 1
The specimens from 20 Aug → Kona, Hawaiʻi Island 25 August 1922 5 specimens, 5 names · placed by island
Elaphoglossum crassifolium 1 , Macropiper methysticum 1 , Psilotum nudum 1
The specimens from 25 Aug → Kilauea, Hawaiʻi Island 26 August 1922 3 specimens, 3 names · placed by island
Fuchsia magellanica 1 , Palhinhaea cernua 1 , Peperomia membranacea 1
The specimens from 26 Aug → Puna Coast near Hilo, Hawaiʻi Island 27 August 1922 1 specimens, 1 name · placed by island
Cassytha filiformis 1
The specimens from 27 Aug → Fern Forest, Kilauea, Hawaiʻi Island 28 August 1922 1 specimens, 1 name · placed by island
Peperomia leptostachya 1
The specimens from 28 Aug → Iao Valley, Maui 29 August 1922 4 specimens, 4 names · placed by island
Microsorum spectrum 1 , Pipturus albidus 1 , Solanum capsicoides 1
The specimens from 29 Aug → Hanalei, cave, Kauaʻi 6 September 1922 1 specimens, 1 name · placed by island
Phytolacca sandwicensis 1
The specimens from 6 Sep → Waimea Canyon, Kauaʻi 8 September 1922 2 specimens, 2 names · placed by island
Cenchrus echinatus 1 , Richardia brasiliensis 1
The specimens from 8 Sep → Olokele Canyon, Kauaʻi 9 September 1922 2 specimens, 2 names · placed by island
Doodia kunthiana 1 , Pipturus kauaiensis 1
The specimens from 9 Sep → Manoa Valley, Honolulu, Oʻahu 16 September 1922 1 specimens, 1 name · placed by island
Solanum americanum 1
The specimens from 16 Sep → Nuuanu Valley, Honolulu, Oʻahu 17 September 1922 1 specimens, 1 name · placed by island
Crotalaria sericea 1
The specimens from 17 Sep → Honolulu, Manoa Valley, Oʻahu 22 September 1922 1 specimens, 1 name · placed by island
Chamaecrista nictitans 1
The specimens from 22 Sep → Manoa Valley, Oʻahu 24 September 1922 5 specimens, 5 names
Guilandina bonduc 1 , Heliotropium amplexicaule 1 , Leucaena leucocephala 1
The specimens from 24 Sep → Manoa Valley, Oahu, T. Hawaii 26 September 1922 1 specimens, 1 name · placed by island
Vachellia farnesiana 1
The specimens from 26 Sep → Honolulu, Manoa Valley, Oʻahu 27 September 1922 2 specimens, 2 names · placed by island
Bidens pilosa 1 , Nicandra physalodes 1
The specimens from 27 Sep → Honolulu; Manoa Valley, Oʻahu 6 October 1922 7 specimens, 7 names
Antigonon leptopus 1 , Cuphea carthagenensis 1 , Eragrostis cilianensis 1
The specimens from 6 Oct → Haleiwa, Oʻahu 8 October 1922 1 specimens, 1 name
Lycium sandwicense 1
The specimens from 8 Oct → Tantalus Mt, Oʻahu 12 October 1922 1 specimens, 1 name · placed by island
Peperomia leptostachya 1
The specimens from 12 Oct → Honolulu; Tantalus Mountain, Oʻahu 13 October 1922 3 specimens, 3 names · placed by island
Odontosoria chinensis 1 , Passiflora edulis 1 , Passiflora suberosa 1
The specimens from 13 Oct → Honolulu, Fort Shafter, Oʻahu 22 October 1922 1 specimens, 1 name · placed by island
Waltheria indica 1
The specimens from 22 Oct → Makiki Valley, Honolulu, Oʻahu 28 October 1922 3 specimens, 2 names · placed by island
Doryopteris decipiens 2 , Adiantum raddianum 1
The specimens from 28 Oct → N. of Nuuanu Pali, Oʻahu 29 October 1922 1 specimens, 1 name · placed by island
Triumfetta rhomboidea 1
The specimens from 29 Oct → Honolulu: Makiki Valley, Oʻahu 30 October 1922 2 specimens, 2 names · placed by island
Microsorum grossum 1 , Peperomia leptostachya 1
The specimens from 30 Oct → Makiki Valley, Oʻahu 5 November 1922 2 specimens, 2 names · placed by island
Hibiscus furcellatus 1 , Pipturus albidus 1
The specimens from 5 Nov → Tantalus, Honolulu, Oʻahu 12 November 1922 1 specimens, 1 name · placed by island
Aleurites moluccanus 1
The specimens from 12 Nov → Hilo, Hawaiʻi Island 1 December 1922 3 specimens, 3 names
Barbellopsis trichophora 1 , Cuscuta sandwichiana 1 , Vigna marina 1
The specimens from 1 Dec → Mt. Tantalus, Oʻahu 2 December 1922 1 specimens, 1 name · placed by island
Bidens sandvicensis 1
The specimens from 2 Dec → Olokele Canyon, Kauaʻi 9 December 1922 1 specimens, 1 name · placed by island
Doryopteris decipiens 1
The specimens from 9 Dec → Hilo, Hawaiʻi Island 10 December 1922 2 specimens, 2 names
Blechnum appendiculatum 1 , Peperomia leptostachya 1
The specimens from 10 Dec → Outskirts of Hilo, Hawaiʻi Island 12 December 1922 1 specimens, 1 name · placed by island
Hibiscus furcellatus 1
The specimens from 12 Dec → Kilauea, Hawaiʻi Island 13 December 1922 5 specimens, 5 names · placed by island
Asplenium adiantum-nigrum 1 , Carex wahuensis 1 , Cenchrus echinatus 1
The specimens from 13 Dec → Kilauea, Byron Walk, Hawaiʻi Island 14 December 1922 1 specimens, 1 name · placed by island
Peperomia leptostachya 1
The specimens from 14 Dec → Kilauea, Hawaiʻi Island 15 December 1922 5 specimens, 5 names · placed by island
Dicranopteris linearis 1 , Hoiokula sandwicensis 1 , Hymenophyllum obtusum 1
The specimens from 15 Dec → Kilauea-iki, Hawaiʻi Island 16 December 1922 2 specimens, 2 names · placed by island
Dryopteris wallichiana 1 , Psilotum complanatum 1
The specimens from 16 Dec → Kilauea, Hawaiʻi Island 17–20 December 1922 · 4 days 10 specimens, 10 names · placed by island
Anoectochilus sandvicensis 1 , Briza minor 1 , Elaphoglossum crassifolium 1
The specimens from 17 Dec–20 Dec → Hawaii National Park, Hawaiʻi Island 21 December 1922 2 specimens, 2 names · placed by island
Carex wahuensis 1 , Psilotum complanatum 1
The specimens from 21 Dec → Bird Park, Kilauea, Hawaiʻi Island 22 December 1922 3 specimens, 3 names · placed by island
Melicope hawaiensis 1 , Myrsine lessertiana 1 , Peperomia tetraphylla 1
The specimens from 22 Dec → Kilauea, Hawaiʻi Island 24–25 December 1922 · 2 days 3 specimens, 3 names · placed by island
Elaphoglossum wawrae 1 , Isachne distichophylla 1 , Stenogyne calaminthoides 1
The specimens from 24 Dec–25 Dec → Kau Desert at Bird Park; Kilauea, Hawaiʻi Island 26 December 1922 3 specimens, 2 names · placed by island
Pellaea ternifolia 2 , Osteomeles anthyllidifolia 1
The specimens from 26 Dec → Kilauea, Hawaiʻi Island 28 December 1922 5 specimens, 5 names · placed by island
Cyrtandra platyphylla 1 , Dicranopteris linearis 1 , Hoiokula sandwicensis 1
The specimens from 28 Dec →