The following blog was written by Linde Hess a digitiser in the Herbarium.

Since 2021 we have increased our digitisation capacity reaching 1 million specimens imaged in August 2024. Each digitiser is assigned a family of plants to work through. This series of blogs will spotlight the families that have been completed by a member of the team.

Elatinaceae

The family Elatinaceae is also knowns as the Waterwort family. It consists of only two genera Bergia and Elatine. The native range of the genus Bergia is W. & Central U.S.A. to Tropics & Subtropics. The genus Elatine also occurs in temperate regions, it contains about 25 species of annual or perennial plants found in wet areas worldwide. Several Elatine species can be found in Scotland. For instance, six-stamened Waterwort, this is a tiny aquatic plant which can be found on the very edges of fresh water lakes and lochs in Scotland.

Our Collections

The total number of specimens databased is 305. Before the mass digitisation push, we had 215 Elatinaceae entries in our database. Of these 11 are type specimens.

You can view the specimens here.

Top 5 Regions

No. of SpecimensHerbarium Filing Region
75Britain & Ireland 
67Europe excl. Britain & Ireland 
61India, Bangladesh & Pakistan
14North America
13West Asia – Arabian Peninsula 

Genera

No. of SpecimensGenus
187Elatine
115Bergia

Six tiny Scottish six-stamened waterwort (Elatine hexandra) plants who grew at the edge of Black Loch at Castle Kennedy near Stranraer
Six tiny Scottish six-stamened waterwort (Elatine hexandra) plants who grew at the edge of Black Loch at Castle Kennedy near Stranraer (E00965063).

Irvingiaceae

This family consists of four accepted genera: Allantospermum, Desbordesia, Irvingia and Klainedoxa.

Our Collections

The total number of specimens databased is 51. Before the mass digitisation push, we had 34 Irvingiaceae entries in our database.

You can view the specimens here.

Regions

No. of SpecimensHerbarium Filing Region
32Tropical Africa
11Indo-China 
5Myanmar
3Malay Peninsula

We do not have many Irvingiaceae members in our collection; most of them were collected in central Africa.         

Genera

No. of SpecimensGenus
43Irvingia
5Klainedoxa
3Desbordesia

The genus Irvingia Hook.f. is best represented in our collection with 43 specimens. It is not to be confused with the genus Irvingia F.Muell. which is an illegitimate name, as it is a later homonym and a synonym of Polyscias J.R.Forst. & G.Forst. in the Araliaceae family.

We do not have any representatives of the genus Allantospermum in our collection, this is not surprising as there are only two tree species in this genus and they are endemic to Borneo and Madagascar. Allantospermum multicaule (Capuron) Noot. only occurs in Madagascar, while Allantospermum borneense Forman only occurs in Borneo.

Sometimes a herbarium specimen is mainly made up of leaves mounted/affixed in a satisfying pattern, like this Irvingia grandifolia, an Irvingiaceae collected in Gabon in 2005 (E00217568).
Sometimes a herbarium specimen is mainly made up of leaves mounted/affixed in a satisfying pattern, like this Irvingia grandifolia, an Irvingiaceae collected in Gabon in 2005 (E00217568).