ALBERT

Description: This is the second paper dealing with Myxomycetes collected by me in the Netherlands, mostly in the neighbourhood of Doorwerth. Specimens of the species dealt with are preserved either in my private collection or in that of the Botanical Museum and Herbarium of the State University, Utrecht (in the last named case the numbers are followed by a \xe2\x80\x9cU\xe2\x80\x9d), or in both.

Description: In the present study pollen morphology of the Euphorbeaceae is treated as an additional character in taxonomy. Besides the greater part of the genera occurring in the system of PAX and K. HOFFMANN (1931), most of the genera published after 1931 are studied. The pollen grains have been described with the aid of a terminology as simple as possible. In principle the terminology of IVERSEN and TROELS-SMITH has been followed, although in addition, many improvements of ERDTMAN have been used. One of the simplifications is the rejection of POTONI\xc3\x89\xe2\x80\x99s term sculpture. All elements occurring on the endexine are called structure elements; all structure elements together form the structure of a pollen grain. For the sake of consequence endexine apertures and extexine apertures are discussed separately. Different pollen grains are placed in different pollen types. If the differences are of minor importance, the pollen grains are placed in subtypes. Several types can have some characters in common. To express the correspondences, these types are assembled in configurations. As the pollen types in Phyllanthoideae and Crotonoideae differ distinctly, the division of the Euphorbiaceae in these subfamilies is maintained in the discussion of the results. The Phyllanthodieae can be separated in three large groups of pollen types ( Antidesma configuration, Amanoa configuration and Aristogeitonia configuration), which agrees with the grouping of PAX in 1924. The remaining small configurations belong in taxonomic respect to the genera of the Antidesma configuration. In the Crotonoideae many genera possess pollen grains with a croton-pattern. These genera should be treated as a single group. Besides this natural group, the Plukenetiinae possess pollen grains which are clearly distinguished from other genera in the Crotonoideae. Pollen grains of Omphalea are similar to those in the Plukenetia configuration. This pollen-morphological result agrees with the opinion of CROIZAT.\nThe remaining pollen grains in the Crotonoideae are less easy to differentiate in groups. One of the largest configurations is the Mallotus configuration, which includes most genera of the Acalypheae and several genera or other tribes. The Hippomane configuration is another large one. This configuration comprises the tribes Hippomaneae and Euphorbieae. The pollen grains of both tribes are very similar. The genus Pachystroma is pollen-morphologically as well as taxonomically related to the tribe Hippomaneae.\nPera, treated as a separate tribe by PAX and K. HOFFMANN, is related by its pollen grains to some genera in the Acalypheae.\nDalechampia is habitually related to the genera in the Plukenetiinae. Pollenmorphological data, however, do not support this relation. The pollen grains of Dalechampia are not similar to any other pollen type.\nThe morphology of the pollen grains of the Stenolobeae is in agreement with the opinion of PAX, that any separation of these Australian genera is an artificial one.

Description: This work was undertaken at the suggestion of Dr. J. Lanjouw and Dr. F. P. Jonker. The citation heading this paragraph indicates that the group of Caryophyllaceae with which it deals, presents unusual taxonomic difficulties. At first, it was intended to restrict the revision to the genus Gypsophila. However, in the course of the work it was realized that the small genera Bolanthus, Ankyropetalum and Phryna could not be left out of account as they had been regarded by some authors as subdivisions of Gypsophila and by others as near relatives of this genus. For this reason a complete revision of these genera too was included.\nThe only previous revision of Gypsophila is that published by Williams (1889). His study, largely based on data derived from the literature, includes 76 species i.e. about 3/5th of the number recognized here. His views on the generic limits were strongly influenced by those expressed by BENTHAM in BENTHAM and HOOKER\xe2\x80\x99s Genera Plantarum 1 (1862). Later authors did not follow him in this respect, and generally preferred BOISSIER\xe2\x80\x99s delimitation (1867), so e.g. PAX and HOFFMANN in the 2nd Edition of ENGLER und PRANTL, Planzenfam. (1934). PAX had already accepted this delimitation in the first edition (1889).

Description: The new genus Aglaothecium Groenh. is proposed to accomodate the new species A. saxicola Groenh. The development of bitunicate asci as occurring in cryptothecioid genera is compared with that of the supposedly unitunicate but thick-walled asci which are common in Lecideaceae and Lecanoraceae. The question is discussed whether bitunicate asci are always indifferent to iodine.

Description: The author introduces two new genera, Mniopetalum Donk & Sing, (based on a new species, M. globisporum Donk) and Episphaeria Donk (based on Cyphella fraxinicola Berk. & Br.). Three other genera in an emended circumscription are discussed: Stigmatolemma Kalchbr., Phaeosolenia Speg., and Cyphellopsis Donk. Rhodocyphella W. Cooke is reduced to the synonymy of Stigmatolemma; and Maireina (Pil\xc3\xa1t) W. Cooke, to the rank of a section of Cyphellopsis, which is tentatively considered to consist of a single complex species for which the name Cyphella monacha Speg. apud Roum. is temporarily used. New combinations are made in Mniopetalum (1), Episphaeria (1), Stigmatolemma (3), Phaeosolenia (2). Most of these names are used (but not validly published) in a recent work of Singer where also the genera mentioned above are described and discussed.

Description: The present paper, which is the first of a series of studies on Discomycetes, is concerned with type material of Ascobolus and Saccobolus from Spegazzini\'s herbarium, deposited at La Plata (LPS). The author is indebted to Dr. J. C. Lindquist, for sending the herbarium specimens on loan.\nThe work for this paper was facilitated by a grant from the Netherlands Organization for the Advancement of Pure Research (Z.W.O.).

Description: Four species of Fimaria Vel. are described. The following new combinations are made: Fimaria hepatica (Batsch per Pers.) Brumm., F. cervaria (Phill. apud J. Stevenson) Brumm., and F. theioleuca (Roll.) Brumm. Ascobolus vinosus Berk., A. fuckelii J. Kunze, A. piceus (Limminghe) ex Cooke, and Fimaria murina Vel. are reduced to the synonymy of Fimaria hepatica.

Description: INHOUD\nInleiding.................... 3\nHet analyseren van braakballen.............. 7\nHet instrumentarium................. 11\nHet opmeten van de zoogdierschedel............. 13\nTabellen voor het determineren van de schedelresten........ 24\na. Tabel voor het onderscheiden van bovenkaken......... 25\nb. Tabel voor het onderscheiden van onderkaken......... 30\nSystematisch overzicht van de in braakballen aangetroffen zoogdieren .... 36\nSamenvatting in het Engels (Summary)............ 55\nTabellen van schedelmaten................ 57-58 Geciteerde literatuur................. 59\nRegister op de zoogdiernamen.............. 62\nINLEIDING\nHet is ruim dertig jaar geleden dat Schreuder (1931, pp. 179-182) in het tijdschrift \xe2\x80\x9eDe Levende Natuur" haar \xe2\x80\x9eTabel tot het bepalen van de soorten der muisachtigen (Muridae) voorkomend in uileballen" publiceerde. Twee jaar later verscheen in hetzelfde tijdschrift de \xe2\x80\x9eTabel tot het bepalen van de insecteneters voorkomende in uileballen" samengesteld door [B\xc3\xb6hmers en] Van Bemmel (1933, pp. 312-314). Beide tabellen werden door IJsseling en Scheygrond (1943, pp. 150-152; 157-16o; 1950, pp. 148-150; 155-157) in de twee edities van hun boek \xe2\x80\x9eDe zoogdieren van Nederland" overgenomen.\nHet is onbetwistbaar dat deze tabellen van grote betekenis zijn; zij hebben er niet alleen veel toe bijgedragen om de aandacht te vestigen op het belang van het analyseren van braakballen voor de zoogdierfaunistiek van ons land,

Description: Among the new material which was examined by me after the completion of the revision of the genus Pittosporum for the Flora Malesiana (vol. I, 5, 1957) and additions in Nova Guinea n.s., 9, 1958, 339, the following is worth mentioning: Pittosporum pentandrum (Blanco) Merr. NORTH BORNEO. Ranau Distr., Bukit Ampuan, alt. 1500 m, Meijer SAN 20289, in primary forest on hill side ridge. Note. This is the first record from Borneo; otherwise known from Formosa, the Philippine Islands, and N. Celebes.\nPittosporum pullifolium Burkill. WEST NEW GUINEA. Koebre Mts, Anggi Lakes, alt. 2300 m, Sleumer & Vink BW 14148, shrub 4 m, on forest edge, rather scarce, fruit green. Note. A specimen with young fruits on infructescences which are placed axaillary along the twigs, instead of being terminal.

Description: A. F. G. Kerr (1877\xe2\x80\x941942) worked in Siam between 1902 and 1932, originally as a doctor, later as government botanist. He made large botanical collections in Siam and surveyed the whole of that country. Our knowledge of the flora of Siam is mainly based on his collections (now completely represented at Kew and in the British Museum), which formed the materials for the Florae Siamensis Enumeratio.\nA sketch of his life and career is given, also a bibliography, including special publications devoted to Kerr or to his material and details about his collections; by means of an Itinerary the date can be found of any Kerr number as well as the locality with approximate longitude and latitude, and by means of a list originally prepared by Kerr himself and here posthumously published, for each geographic name the province and the region of Siam where it is situated.\nSeveral persons were inspired by Kerr to make botanical collections themselves, notably Anuwat, Bourke-Borrowes, Mrs. Collins, Garrett, F. H. W. Kerr, Lakshnakara, Marcan, Noe, Put, Rabil, Rock, Eryl Smith, H. M. Smith, Vanpruk, Winit, Yuang. Some information about these persons and their collections has been added.