Micrantha (citrus)
[6] The micrantha was first described to Western science in 1915 by Peter Jansen Wester, who worked for the Philippine Bureau of Agriculture at the time.Wester collected ripe fruit specimens of biasong (small-flowered papeda, Citrus hystrix var.Biasong is characterized by small flowers (thus the "small-flowered" moniker) with fewer stamens than other papedas and oblong-obovate, few-loculed fruits.Flowers are small, four-petaled, white with a thin purple edge, 12–13 mm (0.47–0.51 in) in diameter, forming cymes of two to five.[8] Wester gave the botanical description:[3] A shrubby tree, 4.5 meters tall, with slender branches and small, weak spines; leaves 55 to 80 millimeters long, 20 to 25 millimeters broad, ovate to ovate-oblong or elliptical, crenulate, thin, of distinct fragrance, base rounded to broadly acute; apex obtuse, sometimes notched, petioles 20 to 30 millimeters long, broadly winged, about 14 millimeters wide, wing area somewhat less than one-half of the leaf blade; flowers in compact axillary or terminal cymes, 2 to 7, small, 5 to 9 millimeters in diameter, white, with trace of purple on the outside; calyx small, not cupped, petals 3 to 5; stamens 15 to 18, free, equal; ovary very small, globose to obovate; locules 7 to 9, style distinct; stigma small, knob like; fruit 15 to 20 millimeters in diameter, roundish in outline; base sometimes nippled; apex an irregular, wrinkly cavity; surface corrugate, greenish lemon yellow; oil cells usually sunken; skin very thin; pulp fairly juicy, acid, bitter with distinct aroma; juice cells very minute, blunt, containing a small, greenish nucleus; seeds small, flattened, sometimes beaked.Clear, intensely fragrant oil can be produced from the samuyao peel, and it has been used as a hair fragrance by women who live where it grows.
Scientific classificationPlantaeTracheophytesAngiospermsEudicotsRosidsSapindalesRutaceaeCitrusBinomial nameSynonymsTanakaWesterpapedaPhilippinesvarietiesCitrus hystrixprogenitorPeter Jansen WesterDumagueteNegrosZamboangaMisamisMindanaostamensloculedkinilawcrenatePetiolesloculesobovateGeorg Eberhard Rumphiusbergaptenfuranocoumarinphototoxicbergamot orangebergamot essential oilphytophotodermatitisKey limecitronPersian limelumiasBorneoGermplasm Resources Information NetworkAgricultural Research ServiceUnited States Department of AgricultureBibcodespeciesAustralian and Papuan wild limes groupIchang papedaKaffir limeKumquats groupMandarin orangeMangshanyeganMountain citronPomeloRyukyu mandarinhybridsGrapefruitOrangesweet orangecultivarsAlemowAmanatsuAssam lemonBizzarriaBitter orangeBlood limeBlood orangeByeonggyulBiasongCam sànhCara Cara navel orangeCitrangeCitrumeloClementineCoorg orangeDaidaiDekoponEncoreFairchild tangerineFlorentine citronForbidden fruitGinger limeHarukaHassakuHebesuHeen naranHyuganatsuImperial lemonIndian wild orangeIyokanJabaraJaffa orangeJamaican tangeloKabbadKabosuKaji NemuKakadu limeKanpeiKawachi bankanKhasi papedaKinkoji unshiuKinnowKishu mikanKiyomiKobayashi mikanKomikanLarahaLemonade fruitLimón de PicaMandeloMandoraMelanesian papedaMelogoldMeyer lemonMidknight Valencia OrangeMurcottMyrtle-leaved orange treeNagpur orangeNasnaranNew Zealand grapefruitŌgonkanOrangelo/ChironjaOroblancoPalestinian sweet lime