Volume 5 > Part 4 > Year 1992 > Page 431 > Crypteroniaceae > Crypteronia

Crypteronia paniculata Blumewfo-0000933111

Bijdr.: 1151. 1826; Kurz, Fl. Burm. 1: 519. 1877; Clarke in Fl. Br. Ind. 2: 574. 1879; Brandis, Ind. Trees: 341. 1906; Gagnep. & Guill. in Fl. Gén. I.-C. 2: 696. f. 70. 1920; Ridl., Fl. Malay Penins. 1: 821. 1922; Craib in Fl. Siam. En. 1: 729. 1931; Corn., Ways. Trees: 198. F. 51. 1940; Lee. in Fl. C.L.V. 4: 58. 1965; Beus.-Osinga in Fl. Males., Ser. 1, Spermat. 8: 194. 1977, incl. var. affinis (Planch.) Beus.-Osinga. Plate XXVIII: 39–40.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Large tree, 20–30 m high, up to 300 cm in girth or more; bark dark grey or brownish-grey, rough, cracking and flaking longitudinally; young shoots darkish-purple; young branches quadrangular. Leaves elliptic, ovate, or ovate-oblong, 6–22 by 4–12 cm; apex acuminate; base cuneate or obtuse; glabrous and glossy green above, puberulous or glabrous, light green below; mostly chartaceous; petiole 4–9 mm long. Inflorescences 7–30 cm long with a few to several paigs of racemes along the main and secondary axes; racemes 7–20 cm long, 5–7 mm wide, yellowish-white or greenish-yellow; bracts and bracteoles narrowly triangular to linear; pedicels 1–3 mm long. Calyx-tube 2–3 mm wide, finely tawny puberulous outside, densely whitish-tomentose inside especially in male flowers; calyx-lobes 5, 0.5–1.5 mm long. Capsules numerous, globose to ovoid, 2–4 mm long, slightly laterally compressed, finely puberulous, 2-valved, faintly longitudinally grooved at the middle of each valve.

Thailand : NORTHERN: Chiang Mai, Lampang, Phrae; CENTRAL: Nakhon Nayok; EASTERN: Ubon Ratchathani; NORTH-EASTERN: Nong Khai, Sakon Nakhon; SOUTH-EASTERN: Chanthaburi, Trat; SOUTH-WESTERN: Kanchanaburi, Prachuap Khiri Khan; PENINSULAR: Ranong, Phangnga, Phuket, Trang, Satun, Chumphon, Surat Thani, Nakhon Si Thammarat, Songkhla, Pattani, Narathiwat.

Distribution : E India (Assam), Bangladesh, Andaman Islands, Burma, Indochina, Malay Peninsula, Sumatra, Java (type), Lesser Sunda Islands, Borneo, the Philippines.

Ecology : Locally common in secondary tropical evergreen rain forests and dry evergreen forests from sea level to ca 1,000 m alt., sporadic in moister areas of mixed deciduous forests. Flowering: profusely during November–January when new sets of leaves appear. Flowers have a strong, disagreeable smell.

Vernacular : Khi mot (ขี้มด), khap (คับ), mueat so (เหมือดเซาะ)(Northern); ka am (กะอาม)(Northeastern); sida pa (สีดาป่า)(Eastern); khi non (ขี้หนอน), krathong loi (กระทงลอย)(Southeastern); ka som (กาซ้อม), krom (กร๊อม), som (ซอม, สอม)(Peninsular); mu-ku-wae (มุกูแว), pi-kui (ปีกุย)(Malay-Peninsular).

Notes: Crypteronia paniculata Blume var. affinis (Planch.) Beus.-Osinga is treated here as a synonym of C. paniculata Bume. The distinctions between these two taxa based on the degree of hairiness of leaves and receptacle, as well as the capsule shape are not clear-cut due to ecological variation. This is particularly true in populations from mainland SE Asia.