Radio Talks and correspondence regarding A.B.C. broadcasts and talks by J.H. Willis:
'Your National Herbarium and What it Does', Talk for Broadcast from 3XY 'Over-the-Wall Session', 19 November 1945;
'Mulga', 24 April 1949;
'Fern Gullies', A.B.C. Broadcast Address, 24 July 1952;
'Australia's Own Orchids', 9 July 1956;
'Mushrooms', script for talk for News Review, 9 May 1956;
'Monitor' Interview, 22 August 1956;
'Gum Trees', News from Nature Session, 5 November 1956;
'The Botanical Baron of the Royal Society', A.B.C. Broadcast Address, 26 August 1960.

Material collected for a fifteen minute talk delivered by J.H. Willis in 1976. List of Rushworth District Flora; The Victorian Naturalist, exercise book entitled 'The Flora of Graytown', by N.A. Wakefield.

University of Melbourne Systematic Botany Practical lecture notes by J.H. Willis.

The address 'Arctic Scenes and Plants' delivered by J.H. Willis at the Society for Growing Australian Plants meeting and published in the Society for Growing Australian Plants, Victoria Newsletter, June 1973.

Notes for the opening of the 18th Biennial Conference of the Association of Societies for Growing Australian Plants delivered by J.H. Willis; letter to J.H. Willis from Paul Kennedy acknowledging Willis brief appearance; Association of Societies for Growing Australian Plants invitation and agenda of the conference.

The talk, 'Bountiful Borneo' delivered by J.H. Willis at the general meeting of the Geelong Field Naturalists Club Inc. and published in Geelong Naturalist, Vol. 29 No. 3, Summer, 1992/3.

'Forestry in Victoria', notes on an address delivered to the Methodist Order of Knights, Belgrave, 31 August 1934;
'Fungi of the Daylesford Bush', lecture delivered to Methodist Ladies' Guild, Daylesford, 7 July 1937. The same lecture was delivered to the F.N.C.V. under the title 'The Alluring World of Fungi', 13 June 1938;
'Fungus Spores', lecture delivered to the Microscopical Society, 18 June 1940;
'Historical Survey of the Australian Flora', delivered at a lunch-time lecture at Kodak Gallery, in connection with H.J. Reeves third coloured photograph exhibition of Australian Wildflowers, 24 February 1942;
'Some Trees in the Melbourne Botanic Gardens', 7 March 1942;
'Knowing the Out-door', substance of a natural history address delivered to the Rover Scouts' annual dinner, 24 June 1944;
'Flower Perfumes', occasion and date unknown. Also prompt cards, newspaper clipping entitled ' The Open Air', The Observer, 2 July 1944;
'Plant Ecology', occasion and date unknown;
'Fungi Around Victoria', occasion and date unknown;
'A Story of Plants and Places', occasion and date unknown;
'The Fascinating World of Fungis', occasion and date unknown;
'Interesting Flowerless Plants', occasion and date unknown;
'Botanical Ramble Through Victoria', occasion and date unknown;
'Native Floral Gems of Australia', occasion and date unknown;
'Wildflowers', occasion and date unknown;
'Lily Family in Australia', occasion and date unknown;
'Grasses, Sedges and Rushes', occasion and date unknown;
'Fungi of Timber', occasion and date unknown.

'Four Elementary Lectures in Victorian Plant Ecology', delivered to the Council of Adult Education, August 1948. Also a copy of the Australasian Association for the Advancement of Science Report of the Ecology Committee, 1923;
'Natural History of a Suburban Garden', the Council of Adult Education Class, 30 March 1949;
'Wildflower Protection', substance of an address delivered to District Representatives at the Technical School, Warnambool, 20 September 1952;
'Wildflowers Worth Saving', lecture at the National Museum of Victoria, 26 September 1952;
'Principles of Ecology', December 1972;
'Garden Shrubs and trees and their Identification', talk delivered at the Sunshine City Library, 10 April 1987. Also letter confirming the address, notes by Willis on his life as a botanist;
'Bountiful Borneo', 1992
'Lure of the Lower Murray', 16 March 1992;
'Eucalyptus', talk to Teacher's College Trainees, date unknown;
'Talk', delivered to Melbourne Girls' School, date unknown. Also a map;
'Plant Identification', occasion and date unknown;
'The Australian Environment', occasion and date unknown;
'The Daisy Family', occasion and date unknown;
'Botanical Pot-Pouri', occasion and date unknown;
'Aquatic Plants', occasion and date unknown;
'Marsh and Water Plants', occasion and date unknown;
'The Herbarium', occasion and date unknown;
'Victoria's Vanishing Flower Trails', occasion and date unknown;
'Talk on Gardens', occasion and date unknown;
'Borneo and the Botanist', occasion and date unknown;
'Surviving Heritage', occasion and date unknown;
'What the Preservation of our Native Flora Meansto our Nation', occasion and date unknown.

The talk, 'Under the Corner Stone' delivered by J.H. Willis, 15 April 1962 and later published; comprehensive lists on fungi.

Report on Herbarium Seminar at Lae, New Guinea by J.H. Willis April 1965; cover letter; sample and Rayner collection of new Guinea plants, August 1953.

'Floral Gems of New Guinea' by J.H. Willis. Includes substance of lecture (with slides) given to the Society for Growing Australian Plants, 13 June 1971.

C.T. White Memorial Lecture - 'The Extraordinary Eucalypts', delivered to Queensland Naturalists' Club, 18 May 1981; photocopied version; rough notes on 'Our Gumtrees', lecture 24 June 1960.