(Source: Flora Malesiana ser. 1, 1: Cyclopaedia of collectors)

(Source: Flora Malesiana ser. 1, 5: Cyclopaedia of collectors, Supplement I)

Born: 1871, Orleton, Herefordshire, England. Died: 1929, Birmingham, England.

career:

Studied botany at Cambridge (Ph.Dr 1898); Curator Cambridge University Herbarium from 1900-03; later Professor at Aberystwyth, Belfast, and since 1919 at Birmingham.

In 1899 he was attached to the Skeat Expedition to Siam and the Siamese-Malay States (see below), performed under the auspices of Cambridge University.

Begonia yappii Ridl. was named after him.

Collecting localities:

Sket Expedition, 1899. cf also sub W.W. Skeat, Th.N. Annandale and D.Th. Gwynne Vaughan. Mostly in Lower Siam, from March 29 onwards, but also in the Malay Peninsula,¹ viz in Kelantan: Kuala Aring (according to Burkill¹ from Aug. 16-Sept. 26, according to Skeat² reaching this locality on Aug. 6); about Kota Bahru (Sept. 29-Oct. 10); Kuala Essam; Trengganu: Trengganu town (Oct. 11-13); islands off the coast (14-19); Trengganu (Oct. 20-Nov. 4), at Kuala Ibar S of the town, etc.; Perak (possibly only Yapp): Selama village (Nov. 27-29); G. Inas (Dec. 6-24); Sira Rimau (Dec. 26-Jan. 4, 1900).

collections:

Herb. Kew [K] (pres. 1909) and Cambridge [CGE].

literature:

(1) cf. Burkill in Gard. Bull. Str. Settlem. 4, 1927, nos 4-5.

(2) cf. Journ. Fed. Mal. Stat. Mus. 3, 1908, p. 77. The Tahan trip of Skeat was not accompanied by Yapp.

biographical data:

Who’s who 1913; Journ. Bot. 67, 1929, p. 85-86. J. Ecol. 17, 1929, p. 405-408 with portr.; Kew Bull. 1929, p. 140.

photo gallery: