Question: The scientist who first reported Volvox was commonly known by what title name?

full_context: Document 1: Jan Baptist van Helmont: Jan Baptist van Helmont ( ; ] ; 12 January 1580 – 30 December 1644) was a Flemish chemist, physiologist, and physician. He worked during the years just after Paracelsus and the rise of iatrochemistry, and is sometimes considered to be "the founder of pneumatic chemistry". Van Helmont is remembered today largely for his ideas on spontaneous generation, his 5-year tree experiment, and his introduction of the word "gas" (from the Greek word "chaos") into the vocabulary of scientists.
Document 2: Galileo Galilei: Galileo Galilei (] ; 15 February 1564 – 8 January 1642) was an Italian polymath: astronomer, physicist, engineer, philosopher, and mathematician. He has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of science". Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of pendulums and "hydrostatic balances", inventing the thermoscope and various military compasses, and using the telescope (a Dutch optical instrument) for scientific observations of celestial objects.
Document 3: Prochlorococcus: Prochlorococcus is a genus of very small (0.6 µm) marine cyanobacteria with an unusual pigmentation (chlorophyll "a2" and "b2"). These bacteria belong to the photosynthetic picoplankton and are probably the most abundant photosynthetic organism on Earth. "Prochlorococcus" microbes are among the major primary producers in the ocean, responsible for a large percentage of the photosynthetic production of oxygen. Analysis of the genome sequences of 12 "Prochlorococcus" strains show that 1,100 genes are common to all strains, and the average genome size is about 2,000 genes. In contrast, eukaryotic algae have over 10,000 genes.
Document 4: Robert Hooke: Robert Hooke FRS ( ; 28 July [O.S. 18 July] 1635  – 3 March 1703) was an English natural philosopher, architect and polymath.
Document 5: Antonie van Leeuwenhoek: Antonie Philips van Leeuwenhoek ( , ] ; 24 October 1632 – 26 August 1723) was a Dutch businessman, scientist, and one of the notable representatives of the Golden Age of Dutch science and technology. A largely self-taught man in science, he is commonly known as "the Father of Microbiology", and often considered to be the first acknowledged microscopist and microbiologist. Van Leeuwenhoek is best known for his pioneering work in the field of microscopy and for his contributions toward the establishment of microbiology as a scientific discipline.
Document 6: Salvinia: Salvinia, a genus in the family Salviniaceae, is a floating fern named in honor of Anton Maria Salvini, a 17th-century Italian scientist. Watermoss is a common name for "Salvinia". The genus was published in 1754 by Jean-François Séguier, in his description of the plants found round Verona, "Plantae Veronenses" Twelve species are recognized, at least three of which ("S. molesta", "S. herzogii", and "S. minima") are believed to be hybrids, in part because their sporangia are found to be empty.
Document 7: Choanoflagellate: The choanoflagellates are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of the animals. Choanoflagellates are collared flagellates having a funnel shaped collar of interconnected microvilli at the base of a flagellum. Choanoflagellates are capable of both asexual and sexual reproduction. They have a distinctive cell morphology characterized by an ovoid or spherical cell body 3–10 µm in diameter with a single apical flagellum surrounded by a collar of 30–40 microvilli (see figure). Movement of the flagellum creates water currents that can propel free-swimming choanoflagellates through the water column and trap bacteria and detritus against the collar of microvilli, where these foodstuffs are engulfed. This feeding provides a critical link within the global carbon cycle, linking trophic levels. In addition to their critical ecological roles, choanoflagellates are of particular interest to evolutionary biologists studying the origins of multicellularity in animals. As the closest living relatives of animals, choanoflagellates serve as a useful model for reconstructions of the last unicellular ancestor of animals.
Document 8: Georgius Agricola: Georgius Agricola ( ; 24 March 1494 – 21 November 1555) was a German Catholic, scholar and scientist. Known as "the father of mineralogy", he was born at Glauchau in Saxony. His birth name was Georg Pawer ("Bauer" in modern German); "Agricola" is the Latinized version of his name, by which he was known his entire adult life; "Agricola" and "Bauer" mean "farmer" in their respective languages. He is best known for his book "De Re Metallica" (1556).
Document 9: Plant: Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The term is today generally limited to the green plants, which form an unranked clade Viridiplantae (Latin for "green plants"). This includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae, and excludes the red and brown algae. Historically, plants formed one of two kingdoms covering all living things that were not animals, and both algae and fungi were treated as plants; however all current definitions of "plant" exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria).
Document 10: Leiden University: Leiden University (abbreviated as LEI; Dutch: "Universiteit Leiden" ), located in the city of Leiden, is the oldest university in the Netherlands. The university was founded in 1575 by William, Prince of Orange, leader of the Dutch Revolt in the Eighty Years' War. The Dutch Royal Family and Leiden University still have a close relationship; Queens Juliana and Beatrix and King Willem-Alexander are former students. The university came into particular prominence during the Dutch Golden Age, when scholars from around Europe were attracted to the Dutch Republic due to its climate of intellectual tolerance and Leiden's international reputation. During this time Leiden was home to such figures as René Descartes, Rembrandt, Christiaan Huygens, Hugo Grotius, Baruch Spinoza and Baron d'Holbach.
Document 11: Christiaan Huygens: Christiaan Huygens, FRS ( or ; ] ) (Latin: "Hugenius" ) (14 April 1629 – 8 July 1695) was a prominent Dutch mathematician and scientist. He is known particularly as an astronomer, physicist, probabilist and horologist.
Document 12: Leeuwenhoek Medal: The Leeuwenhoek Medal, established in 1877 by the Royal Netherlands Academy of Arts and Sciences, (KNAW), in honor of the 17th- and 18th-century microscopist Antoni van Leeuwenhoek, is granted every ten years to the scientist judged to have made the most significant contribution to microbiology during the preceding decade. From 2015 the Royal Dutch Society for Microbiology (KNVM) will be awarding the Leeuwenhoek Medal.
Document 13: Volvox: Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. It forms spherical colonies of up to 50,000 cells. They live in a variety of freshwater habitats, and were first reported by Antonie van Leeuwenhoek in 1700. "Volvox" diverged from unicellular ancestors approximately   million years ago .
Document 14: Phyllanthus: Phyllanthus is the largest genus in the flowering plant family Phyllanthaceae. Estimates of the number species in this genus vary widely, from 750 to 1200. "Phyllanthus" has a remarkable diversity of growth forms including annual and perennial herbs, shrubs, climbers, floating aquatics, and pachycaulous succulents. Some have flattened leaflike stems called cladodes. It has a wide variety of floral morphologies and chromosome numbers and has one of the widest range of pollen types of any seed plant genus.
Document 15: Yelovichnus: Yelovichnus is an "enigmatic" genus known from fossils of the Ediacaran period. "Yelovichnus" was originally believed to be an ichnotaxon: its fossils, because of their "meandering nature", were initially thought to be feeding trails left by other life forms, such as annelids or mollusks. Better-preserved specimens later demonstrated that the fossils were not true feeding trails, as there was no evidence of turning by the life form that supposedly left them. The fossils are now recognized as belonging to an organism taking the form of "collapsed, segmented tubes", possibly an alga or a protist. It has also been argued that "Yelovichnus" and similar organisms are xenophyophores, large but single-cellular organisms that exist today in the abyssal zone. Due to similar structures found in their fossils, it is theorized that "Yelovichnus" may be related to "Palaeopascichnus", as well as "Aspidella" and "Neonereites". The main difference between "Yelovichnus" and "Palaeopasicichnus" is the shape of their segments: the segments of "Yelovichnus" took the shape of "closed, ovate-shaped loops", whereas the segments of "Palaeopascichnus" were quite varied in shape.
ground_truth: "the Father of Microbiology"