Compound RRI UN SB KC SG TP α -Pinene 1032 2.7 3.1 14.4 - 44.0 Camphene 1076 - - 0.5 - 5.2 Hexanal 1093 - - - - - Undecane 1100 1.9 0.3 0.1 tr - β- pinene 1118 - - 8.7 - 1.7 Limonene 1203 0.2 1.0 5.1 - 7.6 (Z)-3-hexenal 1225 - - - - - γ - terpinene 1255 - - 0.7 - - p- cymene 1280 - 0.3 1.5 - - Terpinolene 1290 - - - - - 6-methyl-5-hepten-2-one 1348 0.9 - - - - Hexanol 1360 - - - - - 2,6 Dimethyl-3,5 heptadien-2-one* 1377 40.7 - - - - Nonanal 1400 0.1 - - - - trans-linalool oxide (furanoid) 1450 - - - 0.2 - α,p-dimestyrene 1452 - - - - - cis-linalool oxide (furanoid) 1478 0.9 - - 0.1 - Longipinene 1482 - - - - - Bicycloelemene 1495 - - - 0.7 - α- copaene 1497 0.1 0.5 0.6 0.3 - α- campholene aldehyde 1499 0.2 0.2 0.6 - - β- bourbonene 1535 - - - 0.3 - Linalool 1553 1.2 - - 0.1 - Octanol 1562 - - - - - Pinocarvone 1586 - - 0.3 - - α -Pinene 1032 2.7 3.1 14.4 - 44.0 Camphene 1076 - - 0.5 - 5.2 Hexanal 1093 - - - - - Undecane 1100 1.9 0.3 0.1 tr - β- pinene 1118 - - 8.7 - 1.7 Limonene 1203 0.2 1.0 5.1 - 7.6 (Z)-3-hexenal 1225 - - - - - γ - terpinene 1255 - - 0.7 - - p- cymene 1280 - 0.3 1.5 - - Terpinolene 1290 - - - - - 6-methyl-5-hepten-2-one 1348 0.9 - - - - Hexanol 1360 - - - - - 2,6 Dimethyl-3,5 heptadien-2-one* 1377 40.7 - - - - Nonanal 1400 0.1 - - - - trans-linalool oxide (furanoid) 1450 - - - 0.2 - α,p-dimestyrene 1452 - - - - - cis-linalool oxide (furanoid) 1478 0.9 - - 0.1 - Longipinene 1482 - - - - - Bicycloelemene 1495 - - - 0.7 - α- copaene 1497 0.1 0.5 0.6 0.3 - α- campholene aldehyde 1499 0.2 0.2 0.6 - - β- bourbonene 1535 - - - 0.3 - Linalool 1553 1.2 - - 0.1 - Octanol 1562 - - - - - Pinocarvone 1586 - - 0.3 - - Carvone 1751 0.1 - - - - Bicyclogermacrene 1755 - - - 1.0 - 1-decanol 1766 - - - - - Decanol 1766 - - 0.3 - - δ-Cadinene 1773 tr 1.6 0.6 0.4 tr γ -Cadinene 1776 0.4 2.2 0.6 0.3 tr p-methyl acetophenone 1797 - - - - - Myrtenol 1804 0.2 - 0.4 - - α-cadinene 1807 - - - - - Methyl dodecanoate 1815 - - - 0.2 - trans -carveol 1845 0.3 0.9 0.3 - - Calamenene 1849 1.0 1.8 0.9 0.3 - Geraniol 1857 1.0 - - - - p-simen-8-ol 1864 - - - - - (E)-Geranylacetone 1868 0.2 - 0.4 0.1 - α -calacorene 1941 0.1 1.2 0.6 - - 1,5- Epoxysalvial-4(14)-ene 1945 - - 1.0 - - (E)-β-Ionone 1958 0.1 - - - - 1 -Dodecanol 1973 0.5 - - 1.5 - Eicosane 2000 0.1 - - - - Caryophyllene oxide 2008 0.3 1.7 1.3 0.1 - Methyl eugenol 2030 - - - - - Salvial -4(14)-en-1-one 2037 0.6 - - tr - 1-Tridecanol 2077 - - - 0.2 - Octanoic acid 2084 0.1 1.0 - - - Globulol 2098 0.2 - - - - Heneicosane 2100 - - - 0.2 - Viridiflorol 2104 - - - 0.2 - Salviadienol 2130 - - - - - Hexahydrofarnesylacetone 2131 0.6 1.4 0.8 1.1 tr Spathulenol 2144 1.5 5.3 6.3 - 8.0 1-Tetradecanol 2179 0.3 - - 0.5 - T -cadinol 2187 - tr - - - Nonanoic acid 2192 0.3 2.2 - - - Docosane 2200 0.1 - - - - T- Muurolol 2209 0.2 - - 0.1 - Methyl hexadecanoate 2226 0.1 - - 0.2 - Carvacrol 2239 - - 2.4 - - α-cadinol 2255 0.3 1.8 0.8 0.2 tr Cadalene 2256 0.4 3.0 0.8 0.2 0.5 Ethyl hexadecanoate 2262 0.2 - - - - Decanoic acid 2298 0.6 - - - - Tricosane 2300 0.9 0.6 0.8 0.6 - Eudesma-4(15),7-dien-1β-ol 2369 - - 0.9 0.7 tr 1-Hexadecanol 2384 - - - 0.1 - Undecanoic acid 2400 0.2 - - - - Tetracosane 2400 - - - 0.4 - Pentacosane 2500 0.2 2.6 3.9 1.9 - Dodecanoic acid 2503 2.3 4.1 3.0 0.1 tr Hexacosane 2600 - - - 0.2 - Phytol 2622 - - tr 0.7 - Benzyl benzoate 2655 0.1 - 1.8 - - Baeckeol 2668 0.9 4.1 2.4 6.1 32.9 Tetradecanoic acid 2670 0.8 2.9 2.4 2.5 - Heptacosane 2700 0.1 1.2 1.0 2.2 - Octacosane 2800 - - - 1.3 - Pentadecanoic acid 2822 - - - 1.2 - Nonacosane 2900 3.2 4.4 11.1 42.7 tr Hexadecanoic acid 2931 2.7 17.7 9.2 23.2 tr TOTAL   72.7 75.3 92.4 96.9 99.9 UN: H. uniglandulosum, SB: H. scabroides, KC: H. kotschyanum, SG: H. salsugineum TP: H. thymopsis RRI Relative retention indices calculated against n-alkanes % calculated from FID data tr Trace (<0.1%) *Tentative identification

Table 1: Percentage of volatiles of 5 endemic Hypericum species.