An equivalent term Protoctista is used for these organisms by various organisations and institutions.

The chytrids have also been included among the Protoctista, but are now regularly classed as fungi.

Kingdom Protoctista is the catch-all kingdom for everything that does not fit into the other four.

In 1860 he named the kingdom Regnum Primigenum or Protoctista.

Kingdoms Protoctista and Chromista are not considered further.

Copeland classified the Fungi in his Protoctista, thus partially avoiding the problem but acknowledging their special status.

Protista" and Protoctista" are nearly synonymous.

Illustrated Glossary of the Protoctista, 1993.

Handbook of Protoctista.

He defined the Protoctista as a "fourth kingdom of nature", in addition to the then-traditional kingdoms of plants, animals and minerals.

Platypus checklist of Protoctista.

Nowadays scientists group all these organisms together into the kingdom Protoctista This drawing of an Euglena shows it's basic body plan.

Recently (1990s) The Kingdom: Protoctista has been recommended, however, this has not been accepted by many authors.

Neoconorbina and the Rosalinidae are included in the Kingdom Protoctista according to the Sen Gupta, 2002.

Not plants or animals: a brief history of the origin of Kingdoms Protozoa, Protista and Protoctista.

The Foraminifera have typically been included in the Protozoa, or in the similar Protoctista or Protist kingdom.

A variety of multi-kingdom systems were proposed, and Kingdoms Protista and Protoctista became well established in biology texts and curricula.

Tritrichomonas foetus in the genus Tritrichomonas within the order Trichomonadida in the Kingdom Protoctista.

Myxomycetes (slime moulds) This group is included under fungi for information but there is now general agreement that the myxomycetes should be classified as Protoctista.

For this reason, the terms "protists," "Protista" or "Protoctista" are sometimes preferred for the high-level classification of eukaryotic microbes.

All the phyla are assigned at least two pages so even the smaller phyla, many which include microscopic organisms in the Protoctista and Bacteria, get good treatment.

(For Kingdom Protista (or Protoctista) and Phylum Granuloreticulosa.)

However logical may be the derivation of Protoctista as the name for a kingdom, I wonder if it is more likely to catch on now than it was in 1861.

As an alternative, he proposed a new kingdom called Primigenum, consisting of both the protozoa and unicellular algae (protophyta), which he combined together under the name "Protoctista".

(Part B. Protoctista / Protista, Volume 1: Chrysomonadida, Coccolithophorida, Charophyta, Diatomacea & Pyrrhophyta.