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.
Central Haleauau Gulch, S of Kaala, Oʻahu 7–11 June 1950 · 5 days 4 specimens, 4 names · placed by island
Clermontia kakeana 1 , Euphorbia multiformis 1 , Kadua affinis 1
The specimens from 7 Jun–11 Jun → head of Koloa Gulch, near Laie, Oʻahu 15 June 1950 1 specimens, 1 name · placed by island
Euphorbia multiformis 1
The specimens from 15 Jun → Deep gulch mauka of Kaaawa Pt, Oʻahu 22 June 1950 8 specimens, 6 names · placed by island
Bidens campylotheca 2 , Bidens populifolia 2 , Euphorbia multiformis 1
The specimens from 22 Jun → 1/2 mi S of Mauna Kapu, Honouliuli FR, Waianae Mts, Oʻahu 28 June 1950 13 specimens, 8 names · placed by island
Schiedea ligustrina 3 , Planchonella sandwicensis 3 , Viola tracheliifolia 2
The specimens from 28 Jun → Nanakuli Valley, S side & east of Puu Manawahua, Oʻahu 29 June 1950 2 specimens, 2 names · placed by island
Diospyros sandwicensis 1 , Lipochaeta lobata 1
The specimens from 29 Jun → [North Polynesia; Canton; Canton (Guangzhou) Province, Canton (=Kanton) 1 July 1950 2 specimens, 2 names
Calotropis gigantea 1 , Sida fallax 1
The specimens from 1 Jul → E side of E branch of Makaleha Valley, Oʻahu 2 July 1950 11 specimens, 10 names · placed by island
Eugenia reinwardtiana 2 , Bidens torta 1 , Gahnia aspera 1
The specimens from 2 Jul → E Makaleha Valley, Oʻahu 4 July 1950 7 specimens, 5 names · placed by island
Dianella sandwicensis 3 , Artemisia australis 1 , Euphorbia multiformis 1
The specimens from 4 Jul → E branch, E Makaleha Valley, W slope, Oʻahu 9 July 1950 1 specimens, 1 name · placed by island
Polyscias oahuensis 1
The specimens from 9 Jul → Canton (=Kanton) 11–12 July 1950 · 2 days 12 specimens, 10 names
Ipomoea violacea 2 , Sida fallax 2 , Eragrostis paupera 1
The specimens from 11 Jul–12 Jul → Barren plain near housing development, Canton (=Kanton) 13 July 1950 2 specimens, 2 names
Eragrostis pectinacea 1 , Fimbristylis cymosa 1
The specimens from 13 Jul → Canton (=Kanton) 15 July 1950 10 specimens, 10 names
Acaciella glauca 1 , Cynodon dactylon 1 , Eleusine indica 1
The specimens from 15 Jul → theater, Canton (=Kanton) 16 July 1950 4 specimens, 1 name
Fimbristylis dichotoma 4
The specimens from 16 Jul → About hotel, Canton (=Kanton) 17 July 1950 1 specimens, 1 name
Euphorbia hypericifolia 1
The specimens from 17 Jul → Kaena: near Manini Gulch, Oʻahu 26 July 1950 1 specimens, 1 name · placed by island
Dodonaea viscosa 1
The specimens from 26 Jul → Waimea: north of Kamananui; lower forest, Oʻahu 27 July 1950 4 specimens, 3 names · placed by island
Sapindus oahuensis 2 , Bidens torta 1 , Pittosporum glabrum 1
The specimens from 27 Jul → E branch, E Makaleha Valley, Oʻahu 30 July 1950 10 specimens, 8 names · placed by island
Deparia fenzliana 3 , Dryopteris fuscoatra 1 , Gynochthodes trimera 1
The specimens from 30 Jul → Kamokunui Gulch, N Kaala, Oʻahu 2 August 1950 4 specimens, 3 names · placed by island
Touchardia oahuensis 2 , Cyanea angustifolia 1 , Kadua cordata 1
The specimens from 2 Aug → Central Makaleha Ridge, Waianae Range, Oʻahu 19 August 1950 5 specimens, 5 names · placed by island
Kadua affinis 1 , Pittosporum flocculosum 1 , Psychotria kaduana 1
The specimens from 19 Aug → Kawaiiki, Oʻahu 27 August 1950 4 specimens, 4 names · placed by island
Bidens torta 1 , Euphorbia multiformis 1 , Pittosporum confertiflorum 1
The specimens from 27 Aug → SE Makua Valley, Oʻahu 17 September 1950 15 specimens, 10 names
Dianella sandwicensis 4 , Pittosporum glabrum 2 , Polyscias oahuensis 2
The specimens from 17 Sep → Koolau Range, Malekahana, Pupkea summit trail, Oʻahu 19 September 1950 8 specimens, 5 names · placed by island
Cyrtandra paludosa 2 , Dubautia laxa 2 , Psychotria kaduana 2
The specimens from 19 Sep → E spur of E ridge of W branch of East Makaha Valley, Oʻahu 30 September 1950 9 specimens, 6 names · placed by island
Wikstroemia oahuensis 3 , Myoporum sandwicense 2 , Melanomma philippinense 1
The specimens from 30 Sep → E of Kumuwela Ridge, Kokee, Kauaʻi 7 October 1950 1 specimens, 1 name · placed by island
Pittosporum kauaiense 1
The specimens from 7 Oct → E gulch, W branch, E Makaleha Valley, Oʻahu 9 October 1950 9 specimens, 9 names · placed by island
Cyrtandra garnotiana 1 , Cyrtandra macraei 1 , Diospyros hillebrandii 1
The specimens from 9 Oct → East Makaleha Valley, Oʻahu 15 October 1950 2 specimens, 1 name · placed by island
Wikstroemia oahuensis 2
The specimens from 15 Oct → Puu Hapapa, summit ridge, Oʻahu 22 October 1950 19 specimens, 16 names · placed by island
Phyllostegia grandiflora 2 , Lipochaeta tenuis 2 , Kadua acuminata 2
The specimens from 22 Oct → Between Mauna Kapu and Palikea, Oʻahu 29 October 1950 15 specimens, 11 names · placed by island
Kadua cordata 2 , Dianella sandwicensis 2 , Dubautia laxa 2
The specimens from 29 Oct → Ridge mauka of church, S. side of Kahana Valley, Oʻahu 5 November 1950 10 specimens, 6 names
Kadua affinis 2 , Myrsine lessertiana 2 , Pittosporum glabrum 2
The specimens from 5 Nov → Near summit at head of Makua Valley, Oʻahu 14 November 1950 1 specimens, 1 name · placed by island
Strongylodon ruber 1
The specimens from 14 Nov → Haleakala, between Red Hill and Kahua, Maui 24 November 1950 13 specimens, 11 names
Morelotia gahniiformis 2 , Myrsine lessertiana 2 , Myoporum sandwicense 1
The specimens from 24 Nov → Lahaina, Hanakaoo Gulch, Maui 27 November 1950 6 specimens, 3 names · placed by island
Dodonaea viscosa 3 , Diospyros sandwicensis 2 , Tephrosia candida 1
The specimens from 27 Nov → W Maui, Makamakaole Stream 28 November 1950 9 specimens, 9 names
Diospyros sandwicensis 1 , Euphorbia celastroides 1 , Kadua acuminata 1
The specimens from 28 Nov → Makua Valley, head, below summit ridge, Oʻahu 1 December 1950 1 specimens, 1 name · placed by island
Perrottetia sandwicensis 1
The specimens from 1 Dec → Near Halawa Park, Pearl Harbor, Oʻahu 10 December 1950 1 specimens, 1 name · placed by island
Euphorbia albomarginata 1
The specimens from 10 Dec → Keawapilau, Mokuleia, Oʻahu 14 December 1950 10 specimens, 9 names · placed by island
Viola tracheliifolia 2 , Bidens torta 1 , Claoxylon sandwicense 1
The specimens from 14 Dec → Small E central ridge nr head of Wailupe Valley, Oʻahu 19 December 1950 10 specimens, 6 names
Diospyros sandwicensis 2 , Euphorbia celastroides 2 , Planchonella sandwicensis 2
The specimens from 19 Dec → East rim of Kalalau Valley, Kauaʻi 27 December 1950 2 specimens, 1 name
Lobelia yuccoides 2
The specimens from 27 Dec → central ridge of Makaleha Valley, Oʻahu 12 January 1951 4 specimens, 4 names · placed by island
Gahnia beecheyi 1 , Psydrax odoratus 1 , Sophora chrysophylla 1
The specimens from 12 Jan → Southwest side of Poamoho Gulch southwest of Brodie Camp, Oʻahu 25 January 1951 3 specimens, 1 name · placed by island
Dodonaea viscosa 3
The specimens from 25 Jan → S Haleauau Valley below Kaala summit cliffs, Oʻahu 28 January 1951 2 specimens, 2 names · placed by island
Kadua centranthoides 1 , Pittosporum confertiflorum 1
The specimens from 28 Jan →