Apocynaceae GH: 02182092 Allamanda cathartica Linnaeus Philippines: Luzon: Catanduanes. San Miguel, Brgy. Si-ay. Barbon, Garcia, & Alvarez 5521 1991-11-26
GH: 02182860 Alstonia scholaris (Linnaeus) R. Brown Philippines: Catanduanes Luzon. San Miguel, Brgy. Si-ay Barbon, Garcia, & Alvarez 5541 1991-11-26
GH: 02114389 Catharanthus roseus Linnaeus & G. Don Philippines: Catanduanes Luzon; Virac, Brgy. San Vicente Barbon, Garcia, & Alvarez 5585 1991-11-28
GH: 02378112 Kibatalia gitingensis (Elmer) Woodson Philippines: Catanduanes ISL.: Luzon; LOC.: Virac, Brgy. Kalatagan Barbon, Garcia, & Alvarez 5649 1991-1-12
GH: 02372896 Tabernaemontana pandacaqui Poiret Philippines: Catanduanes Virac, Brgy. Kalatagan Barbon, Garcia, & Alvarez 5625 1991
Aristolochiaceae GH: 02231216 Aristolochia tagala Chamisso Philippines: Catanduanes Virac, Brgy. Kalatagan Barbon, Garcia, & Alvarez PPI 5647 1991-12-1
Euphorbiaceae A: 02415279 Mallotus sp. Philippines: Catanduanes San Miguel, Brgy. Sulung Barbon, Garcia, & Alvarez 2480 1991-11-23
Lythraceae GH: 02260112 Lagerstroemia speciosa (Linnaeus) Persoon Philippines: Catanduanes San Miguel, Brgy. Si-ay Barbon, Garcia, & Alvarez PPI 5528 1991-11-26
GH: 02260115 Sonneratia caseolaris (Linnaeus) Engler Philippines: Catanduanes Bato, Brgy. Batalay Barbon, Garcia, & Alvarez PPI 5599 1991-11-29
Phyllanthaceae GH: 02508513 Phyllanthus sp. Philippines: Catanduanes Panganiban, District III Barbon, Garcia, & Alvarez PPI 5670 1991-12-3