Corrections to the bryophyte names Porella cranfordi and Temnoma townrowii, and a note on Pyrrhobryum paramattense

Orthographic errors in the specific epithets of Porella cranfordi Steph. and Temnoma townrowii R.M.Schust. are corrected. The orthography of the specific epithet of Pyrrhobryum paramattense (Müll.Hal.) Manuel is discussed, and the original spelling is retained. The collector of the type of Pyrrhobryum paramattense was most likely Franz Wilhelm Sieber, not Charles von Hügel

How to tell an impact story? the building blocks you need

At a loss for how to demonstrate impact? Laura Meagher and David Edwards outline a dynamic understanding of impact evaluation comprised of ‘building blocks’. These building blocks are five types of impacts; five broad categories of stakeholders; and eight causal factors, along with a set of over-arching reflective questions

Symphysodontella (Bryophyta: Pterobryaceae) new to the Australian flora

The genus Symphysodontella (Bryophyta: Pterobryaceae) is reported as new to the Australian flora, based on a collection from northern Queensland that we identify as Symphysodontella splendens. This species was previously known from Indonesia, Malaysia, Papua New Guinea and Vietnam. The presence of gemmae is reported for the first time in Symphysodontella

Camptochaete monolina sp. nov. and Camptochaete subporotrichoides (Bryophyta: Lembophyllaceae) from the Australian Wet Tropics

Camptochaete monolina sp. nov. is described from three collections in the Australian Wet Tropics bioregion. Camptochaete subporotrichoides (Broth. & Geh.) Broth. (Bryophyta: Lembophyllaceae), previously known from Indonesia, Papua New Guinea, Vanuatu, Solomon Islands and Fiji, is reported as new to Australia from several collections in the same bioregion

Design of central irradiation facilities for the MITR-II research reactor

"September 1976."Also issued as a Ph. D. thesis by the first author and supervised by the second author, MIT Dept. of Nuclear Engineering, 1977Includes bibliographical references (pages 94-95)Design analysis studies have been made for various in-core irradiation facility designs which are presently used, or proposed for future use in the MITR-II. The information obtained includes reactivity effects, core flux and power distributions, and estimates of the safety limits and limiting conditions for operation. A finite-difference, diffusion theory computer code was employed in two and three dimensions, and with three and fifteen group energy schemes. The facilities investigated include the single-element molybdenum sample holder, a proposed double-element irradiation facility and a proposed central irradiation facility design encompassing most of the area of the three central core positions. In addition, a comparison of the effects of various absorber materials has been made for a core configuration which includes three solid dummies. Flux levels in the molybdenum holder facility and in the beam ports were calculated for both three and five dummy cores. Flooding the sample tube in these cases was found to increase the safety and operating limits, but not to unacceptable levels for an 8 inch blade height. For the five dummy case, the operating limit in the C-ring was predicted to reach its maximum allowed value at a blade bank height of 13.6 inches. The reactivity effect of flooding was calculated to be 0.19%AK for the five dummy case, in direct agreement with the measured value. Flooging the large sample channel in the double element facility was found to increase the reactivity by 1.5 6%AK ff and also to cause an unacceptable power-peaking. The proposed central irradiation facility is a thermal flux-trap which could produce thermal flux values of up to 2.0 x 1014 n/cm 2 sec. Computer estimates show that flooding this facility's central sample tube would increase this value to 2.5 x 1014 n/cm2 sec, without resulting in an unacceptable power peak

What is Microlejeunea victoriae D.J.Carr?

Microlejeunea victoriae D.J.Carr, (Marchantiophyta: Lejeuneaceae) was described in 2005 from a specimen collected in the 1950s on Wilsons Promontory, Australia. It is Siphonolejeunea nudipes (Hook.f. & Taylor) Herzog

The genus Ptychomitrium Fürnr. (Bryophyta: Ptychomitriaceae) in Australia

Five species of Ptychomitrium have been recognised in Australia: P. acutifolium, P. australe, P. laxifolium, P. mittenii and P. muelleri. Apart from P. mittenii these species have been confused in the literature and in herbarium identifications. Here P. acutifolium, P. australe and P. mittenii are accepted as good species. P. laxifolium is synonymised under P. acutifolium, and P. muelleri is synonymised under P. australe

Chevalier de la Camara (1829–1884), first Spanish botanist in Australia

Chevalier de la Camara was a collector of plants in Australia in the 1870s and 1880s, and at least three species were named in his honour. However, nothing has been recorded of his life or work. In this paper as much as can be gleaned about him is set out, including his origins, birth, marriage, family, honours, botanical and agricultural activities, and death

The moss family Octoblepharaceae A.Eddy ex Menzel in Australia

This is the first treatment of the family Octoblepharaceae for Australia. The sole Australian species, Octoblepharum albidum Hedw., is described and illustrated, and a map of its known and potential distribution in Australia is included

The moss family Calymperaceae (Bryophyta) in Australia. Part 1: Introduction and key to genera

This is the first of five papers constituting a synopsis of the family Calymperaceae for Australia. An expanded concept of the family is followed, including Arthrocormus, Exostratum and Leucophanes as well as the traditional genera Calymperes, Mitthyridium and Syrrhopodon. A key to genera is provided