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.
Utirik Islet, SW corner of islet, Utirik Atoll 28 November 1951 4 specimens, 4 names
Boerhavia tetrandra 1 , Fimbristylis cymosa 1 , Heliotropium velutinum 1
The specimens from 28 Nov → Utrik Atoll, Utirik Atoll 29 November 1951 14 specimens, 10 names
Calymperes tenerum 3 , Eragrostis viscosa 2 , Euphorbia chamissonis 2
The specimens from 29 Nov → Utirik Islet, Utirik Atoll November – December 1951 · 2 days 38 specimens, 31 names
Pandanus tectorius 3 , Tacca leontopetaloides 2 , Artocarpus altilis 2
The specimens from 30 Nov–1 Dec → Bekrak Islet, Utirik Atoll 2 December 1951 13 specimens, 11 names
Portulaca lutea 2 , Ochrosia oppositifolia 2 , Bruguiera gymnorhiza 1
The specimens from 2 Dec → Utirik Islet, Utirik Atoll 3 December 1951 4 specimens, 3 names
Scaevola taccada 2 , Corallinaceae 1 , Entophysalis crustacea 1
The specimens from 3 Dec → Taka, Watwerok Islet, Toke Atoll 4 December 1951 1 specimens, 1 name
Boerhavia diffusa 1
The specimens from 4 Dec → Taka Islet, Toke Atoll 5–6 December 1951 · 2 days 25 specimens, 23 names
Boerhavia diffusa 2 , Laportea ruderalis 2 , Cassytha filiformis 1
The specimens from 5 Dec–6 Dec → Lojiron Island, Toke Atoll 7 December 1951 2 specimens, 2 names
Digitaria setigera 1 , Suriana maritima 1
The specimens from 7 Dec → SW corner of Watwerok Islet, Toke Atoll 8–9 December 1951 · 2 days 36 specimens, 12 names
Porolithon 19 , Hydrolithon gardineri 4 , Porolithon onkodes 3
The specimens from 8 Dec–9 Dec → Lado Islet, Likiep Atoll 12–13 December 1951 · 2 days 16 specimens, 13 names · placed by island
Gemmabryum apiculatum 2 , Terminalia samoensis 2 , Calymperes tenerum 2
The specimens from 12 Dec–13 Dec → Ratak Chain, Likiep Atoll 14 December 1951 24 specimens, 14 names · placed by island
Hydrolithon gardineri 8 , Premna serratifolia 2 , Pandanus tectorius 2
The specimens from 14 Dec → Lado Islet, Likiep Atoll 15 December 1951 16 specimens, 15 names · placed by island
Portulaca pilosa 2 , Cyperus odoratus 1 , Euphorbia heterophylla 1
The specimens from 15 Dec → Likiep Islet, Likiep Atoll 16 December 1951 6 specimens, 6 names · placed by island
Canavalia cathartica 1 , Ceodes grandis 1 , Cyperus javanicus 1
The specimens from 16 Dec → Jemo, Jemo Island 19 December 1951 15 specimens, 14 names
Pseuderanthemum maculatum 2 , Cenchrus echinatus 1 , Digitaria setigera 1
The specimens from 19 Dec → Jemo Island 20 December 1951 13 specimens, 13 names
Boerhavia tetrandra 1 , Canavalia cathartica 1 , Carica papaya 1
The specimens from 20 Dec → Jemo, Jemo Island 21 December 1951 7 specimens, 3 names
Ceodes grandis 4 , Cocos nucifera 2 , Guettarda speciosa 1
The specimens from 21 Dec → Bikar Atoll 22 December 1951 6 specimens, 3 names
Pandanus tectorius 4 , Artocarpus altilis 1 , Scytonema hofmanni 1
The specimens from 22 Dec → Ailuk Atoll 23 December 1951 1 specimens, 1 name
Fimbristylis cymosa 1
The specimens from 23 Dec → Akulwe Islet, Ailuk Atoll 25 December 1951 6 specimens, 5 names
Soulamea amara 2 , Ceodes grandis 1 , Microsorum scolopendria 1
The specimens from 25 Dec → Ailuk Islet, Ailuk Atoll 26–30 December 1951 · 5 days 61 specimens, 50 names
Calymperes tenerum 3 , Artocarpus altilis 3 , Morinda citrifolia 2
The specimens from 26 Dec–30 Dec → Wotho Islet Outer third of islet, Wotho Atoll 2 January 1952 1 specimens, 1 name
Pandanus tectorius 1
The specimens from 2 Jan → Lae Islet, Lae Atoll 6–7 January 1952 · 2 days 38 specimens, 29 names
Barringtonia asiatica 3 , Ochrosia oppositifolia 3 , Ectropothecium sandvicense 2
The specimens from 6 Jan–7 Jan → Loj Islet, Lae Atoll 8 January 1952 12 specimens, 10 names
Pandanus tectorius 2 , Pipturus argenteus 2 , Digitaria setigera 1
The specimens from 8 Jan → Lae Islet, Lae Atoll 9–10 January 1952 · 2 days 36 specimens, 31 names
Intsia bijuga 2 , Pseuderanthemum maculatum 2 , Boerhavia tetrandra 2
The specimens from 9 Jan–10 Jan → Dalap Islet, around Administration area, Majuro Atoll 13 January 1952 1 specimens, 1 name · placed by island
Nostoc commune 1
The specimens from 13 Jan → Lojjairok Islet, Kwajalein Atoll 15 January 1952 3 specimens, 3 names · placed by island
Ipomoea violacea 1 , Jania rubens 1 , Lithothamnion 1
The specimens from 15 Jan → Kwajalein Islet, Kwajalein Atoll 18 January 1952 7 specimens, 6 names · placed by island
Euphorbia prostrata 2 , Desmodium incanum 1 , Euploca procumbens 1
The specimens from 18 Jan → Enebuoj Islet, Kwajalein Atoll 19 January 1952 7 specimens, 6 names · placed by island
Carica papaya 2 , Allophylus timorensis 1 , Calophyllum inophyllum 1
The specimens from 19 Jan → Enewetak Islet, Kwajalein Atoll 27 January 1952 7 specimens, 5 names · placed by island
Cordia subcordata 2 , Pandanus tectorius 2 , Boerhavia tetrandra 1
The specimens from 27 Jan → Kwajalein Atoll 29 January 1952 1 specimens, 1 name · placed by island
Euphorbia thymifolia 1
The specimens from 29 Jan → Kwajalein Islet, Kwajalein Atoll 31 January 1952 1 specimens, 1 name · placed by island
Cenchrus brownii 1
The specimens from 31 Jan → Rua Islet, in center of islet, Ujae Atoll 1 February 1952 2 specimens, 2 names
Fimbristylis cymosa 1 , Lepturus repens 1
The specimens from 1 Feb → Bieto Islet, Ujelang Atoll 3 February 1952 12 specimens, 9 names
Alocasia macrorrhizos 2 , Cucurbita maxima 2 , Laportea ruderalis 2
The specimens from 3 Feb → Enellap Islet, Ujelang Atoll 4 February 1952 4 specimens, 4 names
Calophyllum inophyllum 1 , Pemphis acidula 1 , Terminalia samoensis 1
The specimens from 4 Feb → Raej Islet, Ujelang Atoll 5 February 1952 11 specimens, 7 names
Calymperes tenerum 4 , Scytonema guyanense 2 , Boerhavia tetrandra 1
The specimens from 5 Feb → Ujelang Islet, lagoon side, Ujelang Atoll 6 February 1952 16 specimens, 16 names
Eleusine indica 1 , Euphorbia thymifolia 1 , Hymenocallis littoralis 1
The specimens from 6 Feb → Ujelang Islet, central part, near village, Ujelang Atoll 7 February 1952 19 specimens, 15 names
Stenotaphrum micranthum 2 , Euphorbia chamissonis 2 , Scaevola taccada 2
The specimens from 7 Feb → Ufelang Islet, central part near village, Ujelang Atoll 8 February 1952 6 specimens, 5 names
Pandanus tectorius 2 , Carica papaya 1 , Ochrosia oppositifolia 1
The specimens from 8 Feb → Wotho Islet; N.W. end, Wotho Atoll 12 February 1952 1 specimens, 1 name
Halimeda stuposa 1
The specimens from 12 Feb → Wotho Islet, Wotho Atoll 13–15 February 1952 · 3 days 49 specimens, 40 names
Ochrosia oppositifolia 5 , Scytonema hofmanni 3 , Calymperes tenerum 2
The specimens from 13 Feb–15 Feb → Ujae Islet, Ujae Atoll 16 February 1952 21 specimens, 19 names
Talipariti tiliaceum 2 , Sida fallax 2 , Eleusine indica 1
The specimens from 16 Feb → Bock Islet, Ujae Atoll 17–20 February 1952 · 4 days 42 specimens, 33 names
Ectropothecium sandvicense 4 , Ceodes grandis 3 , Thuarea involuta 3
The specimens from 17 Feb–20 Feb → Ujae Atoll. Ujae Islet in village 21 February 1952 1 specimens, 1 name
Gemmabryum apiculatum 1
The specimens from 21 Feb → Ebeju Islet, Ujae Atoll 22 February 1952 1 specimens, 1 name
Ochrosia oppositifolia 1
The specimens from 22 Feb → Rua Islet, Ujae Atoll 23 February 1952 1 specimens, 1 name
Scytonema guyanense 1
The specimens from 23 Feb → Ebeju Islet. along lagoon beach., Ujae Atoll 2 March 1952 1 specimens, 1 name
Ximenia americana 1
The specimens from 2 Mar → Ebeju Islet, Ujae Atoll 3 March 1952 2 specimens, 2 names
Sophora tomentosa 1 , Soulamea amara 1
The specimens from 3 Mar → Wojia Islet, Ujae Atoll 4 March 1952 4 specimens, 4 names
Halimeda opuntia 1 , Intsia bijuga 1 , Lithothamnion 1
The specimens from 4 Mar → Ebeju Islet.North end of islet in edge of coconut plantation., Ujae Atoll 7 March 1952 2 specimens, 2 names
Tacca leontopetaloides 1 , Ximenia americana 1
The specimens from 7 Mar → Ebeju Islet. on small islet to south (Anuij I.), Ujae Atoll 9 March 1952 2 specimens, 2 names
Ectropothecium sandvicense 1 , Ximenia americana 1
The specimens from 9 Mar → Ujae Islet, Ujae Atoll 13 March 1952 5 specimens, 5 names
Allophylus timorensis 1 , Artocarpus altilis 1 , Gloeocapsa atrata 1
The specimens from 13 Mar → Kwajalein Island, Kwajalein Atoll 15 March 1952 2 specimens, 2 names · placed by island
Entophysalis crustacea 1 , Mastigocoleus testarum 1
The specimens from 15 Mar → Wotho Islet, Wotho Atoll 18 March 1952 2 specimens, 2 names
Entophysalis crustacea 1 , Scytonema hofmanni 1
The specimens from 18 Mar → Kabben Islet, Wotho Atoll 19–20 March 1952 · 2 days 11 specimens, 9 names
Cordia subcordata 3 , Ceodes grandis 1 , Entophysalis crustacea 1
The specimens from 19 Mar–20 Mar → Bokanaetok Islet, north half of, Wotho Atoll 21 March 1952 3 specimens, 3 names
Pemphis acidula 1 , Suriana maritima 1 , Terminalia samoensis 1
The specimens from 21 Mar → Around air field. Plants of Volcano Islands (aka Ogasawara Islands), Iwo Jima 2 April 1952 2 specimens, 2 names
Emilia fosbergii 1 , Phyllanthus debilis 1
The specimens from 2 Apr → Wake Islet, Wake Island 20 April 1952 28 specimens, 27 names · placed by island
Boerhavia diffusa 2 , Catharanthus roseus 1 , Cenchrus echinatus 1
The specimens from 20 Apr →