Herman Johannes Lam

Botanist (1892-1977).

Herman Johannes Lam (3 January 1892 in Veendam – 15 February 1977 in Leiden) was a Dutch botanist. Lam studied at Utrecht University, where he was awarded a Doctor of Biology in 1919. Lam was the appointed the director of the Rijksherbarium in 1933. He retired from academic work in 1962. He was member of the Royal Netherlands Academy of Arts and Sciences since 1960. In 1957, botanist Steenis published a genus of plants from New Guinea (belonging to the family Bignoniaceae) as Lamiodendron, in his honour. The New Guinea species Myrmecodia lamii was also named after Lam.

Abbreviations: H.J.Lam
Occupations: university teacher, botanist
Citizenships: Kingdom of the Netherlands
Languages: Dutch
Dates: 1892-01-03T00:00:00Z – 1977-02-15T00:00:00Z
Birth place: Veendam
Direct attributions: 216 plants, 0 fungi
Authorship mentions: 239 plants, 0 fungi

216 plants attributed, 23 plants contributed to239 plants:

Madhuca pasquieri (Dubard) H.J.Lam 1925
vulnerable and medicinal plant species in the sapotaceae family
Madhuca pasquieri is a species of plant in the family Sapotaceae. It is found in China and Vietnam. It is threatened by habitat loss and overharvesting for its timber.
Diploknema butyracea (Indian Butter Tree) (Roxb.) H.J.Lam 1925
plant species in the sapotaceae family
Diploknema butyracea (Nepali: चिउरी, Chiuri), the Nepali butter tree, or the Indian butter tree, is a multi purpose tree native to the foothills of the Himalayas. An estimated number of chiuri in Nepal has been given as approximately 10.8 million trees, geographically distributed in 46 districts. It is a large tree of family Sapotaceae, flowers during cold season and fruit ripens in June–July. It commonly occurs in the sub Himalayan tract between 300-1500m from sea level.
Aulandra H.J.Lam 1927
plant genus in the sapotaceae family
Aulandra is a genus of plant in the family Sapotaceae endemic to Borneo. As of September 2013 the World Checklist of Selected Plant Families recognises 3 species: Aulandra beccarii (Pierre ex Dubard) P.Royen Aulandra cauliflora H.J.Lam Aulandra longifolia H.J.Lam
Madhuca neriifolia (Illipe Butter Tree) (Moon) H.J.Lam 1925
plant species in the sapotaceae family
Madhuca neriifolia is a species of plant in the family Sapotaceae. It is native to Sri Lanka and India's Western Ghats.
Madhuca bourdillonii H.J.Lam 1927
endangered plant species in the sapotaceae family
Madhuca bourdillonii is a species of flowering plant in the family Sapotaceae. It is endemic to India, where it is known only from Kerala. Recent surveys failed to locate any specimens. The species has been exploited for its wood.
Dacryodes rostrata (Blume) H.J.Lam 1931
plant species in the burseraceae family
Dacryodes rostrata is a tree in the family Burseraceae. The specific epithet rostrata is from the Latin meaning 'beaked', referring to the narrow-tipped leaves.
Madhuca insignis (Lluppai) (Radlk.) H.J.Lam 1925
critically endangered plant species in the sapotaceae family
Madhuca insignis is a species of plant in the family Sapotaceae. It is endemic to India. It had been declared extinct due to habitat loss. However, a Madhuca insignis population has been rediscovered along the banks of the river Kumaradhara, in Dakshina Kannada region of Karnataka state, India. The area is the proposed site for the Kukke I and Kukke II hydel power projects. Restoration efforts of the species are being attempted.
Manilkara rufula (Miq.) H.J.Lam 1941
plant species in the sapotaceae family
Manilkara rufula is a species of tree in the Sapodilla family. It is endemic to the northeastern submontane forests of Bahia, Sergipe, Pernambuco, Paraíba, Ceará and Piauí states of Brazil. Although this species exists in many places, where it occurs it is either not numerous, or its numbers are declining due to loss of habitat.
Manilkara kanosiensis H.J.Lam & B.Meeuse 1941
endangered plant species in the sapotaceae family
Manilkara kanosiensis (commonly known as torem or sawai) is a species of tree in the sapodilla family Sapotaceae. It is thinly dispersed in low-lying rainforests over a large range, from the Maluku Islands of Indonesia to the Bismarck Archipelago (New Britain and New Ireland) of Papua New Guinea. It is endangered by the furious pace of logging in its native habitat, where it is felled as timber.
Madhuca ridleyi H.J.Lam 1935
vulnerable plant species in the sapotaceae family
Madhuca ridleyi is a species of flowering plant in the family Sapotaceae. It is a tree endemic to Peninsular Malaysia. It is threatened by habitat loss.
Madhuca malaccensis (C.B.Clarke) H.J.Lam 1925
plant species in the sapotaceae family
Madhuca malaccensis is a tree in the family Sapotaceae. It is named after Malacca in Peninsular Malaysia.
Dacryodes peruviana (Loes.) H.J.Lam 1932
plant species in the burseraceae family
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Palaquium galactoxylum (Cairns Pencil Cedar) H.J.Lam 1925
plant species in the sapotaceae family
Palaquium galactoxylum, commonly known as Cairns pencil cedar, Daintree maple or red silkwood, is a species of plants in the star apple family Sapotaceae which is endemic to rainforests of New Guinea and northern Australia. It can produce spectacularly large buttress roots.
Manilkara excisa (Urb.) H.J.Lam 1941
endangered plant species in the sapotaceae family
Manilkara excisa (known locally as either sapodilla bullet, sapodilla or simply sappa) is an endangered species of tall tree in the sapodilla family. It is endemic to the extremely steep, forested limestone hills of Trelawny, Cockpit Country and St. James parishes in Jamaica, where, although it is highly prized for its wood, it is threatened by habitat loss.
Madhuca utilis H.J.Lam 1927
endangered plant species in the sapotaceae family
Madhuca utilis is a tree in the family Sapotaceae. The specific epithet utilis means 'useful', referring to the timber.
Madhuca penicillata (King & Gamble) H.J.Lam 1925
vulnerable plant species in the sapotaceae family
Madhuca penicillata is a species of plant in the family Sapotaceae. It is a tree endemic to Peninsular Malaysia. It is threatened by habitat loss.
Madhuca penangiana (King & Gamble) H.J.Lam 1925
plant species in the sapotaceae family
Madhuca penangiana is a species of plant in the family Sapotaceae. It is a tree endemic to Peninsular Malaysia. It is threatened by habitat loss.
Madhuca moonii (Thwaites) H.J.Lam 1925
vulnerable plant species in the sapotaceae family
Madhuca moonii is a species of plant in the family Sapotaceae. It is endemic to Sri Lanka.
Madhuca longistyla (King & Gamble) H.J.Lam 1925
vulnerable plant species in the sapotaceae family
Madhuca longistyla is a species of plant in the family Sapotaceae. It is a tree endemic to Peninsular Malaysia. It is threatened by habitat loss.
Madhuca cuprea (King & Gamble) H.J.Lam 1925
plant species in the sapotaceae family
Madhuca cuprea is a species of plant in the family Sapotaceae. It is a tree endemic to Peninsular Malaysia. The species is confined to rainforest in Perak. There is not enough information to determine whether it is endangered.
Madhuca burckiana H.J.Lam 1925
plant species in the sapotaceae family
Madhuca burckiana is a plant in the family Sapotaceae.
Madhuca aristulata (King & Gamble) H.J.Lam 1925
vulnerable plant species in the sapotaceae family
Madhuca aristulata is a species of plant in the family Sapotaceae. It is a tree endemic to Peninsular Malaysia. It is threatened by habitat loss.
Dacryodes rugosa (Blume) H.J.Lam 1932
plant species in the burseraceae family
Dacryodes rugosa is a tree in the family Burseraceae. The specific epithet rugosa is from the Latin meaning 'wrinkled', referring to the leaflets.
Dacryodes laxa (A.W.Benn.) H.J.Lam 1932
plant species in the burseraceae family
Dacryodes laxa is a tree in the family Burseraceae. The specific epithet laxa is from the Latin meaning 'loose', referring to the inflorescence.
Dacryodes costata (A.W.Benn.) H.J.Lam 1932
plant species in the burseraceae family
Dacryodes costata is a tree in the family Burseraceae. The specific epithet costata is from the Latin meaning 'ribbed', likely referring to the prominent veins on the leaf underside.
Canarium pseudopatentinervium H.J.Lam 1932
plant species in the burseraceae family
Canarium pseudopatentinervium is a species of plant in the incense tree family Burseraceae. The specific epithet pseudopatentinervium is from the Latin meaning "false patentinervium", referring to the species' resemblance to Canarium patentinervium.
Palaquium sericeum H.J.Lam 1925
plant species in the sapotaceae family
Palaquium sericeum is a species of tree in the family Sapotaceae. The specific epithet sericeum means 'silky', referring to the indumentum.
Palaquium rivulare H.J.Lam 1927
plant species in the sapotaceae family
Palaquium rivulare is a species of tree in the family Sapotaceae. It is native to Borneo.
Palaquium rioense H.J.Lam 1925
plant species in the sapotaceae family
Palaquium rioense is a species of tree in the family Sapotaceae. The specific epithet rioense refers to Sumatra's Riau province.
Palaquium pseudorostratum H.J.Lam 1927
plant species in the sapotaceae family
Palaquium pseudorostratum is a species of tree in the family Sapotaceae. The specific epithet pseudorostratum is for the species' similarity to Palaquium rostratum.
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