R Stahl Germany
Jayme Chouinard
Dr. Agustn Stahl (1842-1917) is the earliest renowned Puerto Rican scientist. He worked in numerous disciplines of the natural sciences including, agriculture, archaeology, botany, ethnology, medicine, and zoology. He was responsible for writing the first full-fledged flora of Puerto Rico, "Estudios sobre la flora de Puerto Rico" published from 1883-88 in 6 fascicles that covered all the dicotyledons known to him to occur on the island. His flora is concise and precise, with numerous comments on botanical concepts by his predecessors and contemporaneous botanists. However, his flora was never finished as his treatment for the monocotyledons and the approximately 720 watercolors prepared for it were never published. Although Stahl based his descriptions chiefly on live plants, he collected approximately 1,330 plant collections (with several duplicates) dating from 1882 to 1889.
His collections aren't in chronological sequence, therefore it is difficult to interpret his itinerary or whether he preserved a specimen while writing his flora. The first set of his collections went to Berlin (Krug and Urban herbarium) and were destroyed during the 2nd World War. Duplicates of his collections are known to exist at various herbaria as follows: Botanic Garden & Museum Berlin-Dahlem, Berlin, Germany [B(6)], National Botanic Garden of Belgium [BR(1)]; Botanical Museum, Univ. of Copenhagen, Denmark; Conservatory & Botanic Garden Ville de Geneve, Switzerland [G(1)]; Harvard University, Cambridge, MA, USA [GH(1)]; Systematisch-Geobotanisches Institut, Gttingen, Germany; Rijksherbarium, Leiden, Netherlands [L(7)]; Botanische Staatssammlung, Munich, Germany [M(1)]; The New York Botanical Garden, Bronx, NY, USA [NY(1)]; Swedish Museum of Natural History, Stockholm, Sweden, Dipartimento de Biologia Vegetale, Torino, Italy [TO(2)]; and United States National Herbarium, Washington, DC, USA. Stahl's collections are important because they constitute early records for many native and introduced plants in Puerto Rico. For example, Arrabidea chica (Bignoniaceae) is still known in Puerto Rico from a single collection of Stahl (no. 79), and Anechites nerium (Apocynaceae) collected by Stahl in 1888, has only been recently recollected in Arecibo. His collections were the basis for numerous studies by specialists, some of them resulting in new taxa to science. Stahl described several new species himself (most of which are considered synonyms by modern botanists), but further study is necessary to assess whether his collections or his watercolors constitute types of these names.
Stahl prepared numerous watercolors intended to illustrate his flora, but they were never published. Their location remained unknown until 1922-23 when they were found by Drs. C. E. Chardon and N. L. Britton at the Colegio Santa Rosa in Bayamn (Chardon, 1924). His watercolors for the most part are very accurate and artistically pleasant, depicting approximately 687 species. These are today deposited in various institutions as follows: 583 at the University of Puerto Rico, Mayagez Campus in the Puerto Rican Collection (Sala Manuel Maria Sama y Auger-Coleccin Puertorriquea) of the General Library; 137 at the Archivo General of the Instituto de Cultura Puertorriquea in San Juan; and approximately 10 at the Office of Parques Nacionales in San Juan (Dr. Juan Rivero, pers. comm.).
Stahl's taxonomic work include the publication of 4 new species, but only Clusia gundlachii [Cupey de altura] (see description) is considered a good species by modern botanists. Stahl's contribution to botany is honored by the legume genus Stahlia and by 9 specific epithets of plants that bear his name, five of which are currently considered as good taxa. These are as follows:
1. Argythamnia stahlii Urb.;
2. Cassia stahlii Urb. = Senna pendula var. stahlii (Urb.) Irwin & Barneby;
3. Eugenia stahlii (Kiaersk.) Krug & Urb.;
4. Ficus stahlii Warb.= Ficus trigonata L.;
5. Lyonia stahlii Urb.;
6. Psychotria stahlii Urb.= Psychotria ligustrifolia (Northrop) Millsp.;
7. Spiranthes stahlii Cogn. = Mesadenus lucayanus (Britton.) Schlechter;
8. Ternstroemia stahlii Krug & Urb.;
9. Tetrazygia stahlii Cogn. = Tetrazygia urbanii Cogn.;
The genus Stahlia is represented by a single species, S. monosperma (Tul.) Urb. and it is know to occur only in Puerto Rico and eastern Dominican Republic. The species, known in Puerto Rico as Cbana negra is currently listed as threatened in the USFW Federal Register, Apr 5, 1990.
Biographical Sketches:
1. Chardon, C. E. 1924. Haciendo Patria. Homenaje al Dr. Agustn Stahl. Revista de agricultura de Puerto Rico. 12(11): 65-84.
2. Coll y Toste, C. 1926. Destierro del Dr. Stahl. Expulsin del Dr. Agustn Stahl de la isla. Boletn Histrico de Puerto Rico. Tomo 13: 59-60.
3. Gutierrez de Arroyo, I. 1978. El Dr. Agustn Stahl, Hombre de ciencia: Perspectiva Humanstica
We are happy to share our Sustainability Report with you. Our primary goal has been to create a report that offers a clear understanding of how we, at Damstahl, translate sustainability into practical actions that bring value to our customers, employees, and the society we operate within.
Sustainability is a key priority for us; in fact, it's an integral aspect of our strategy and has been since 2019. We hope this report will inspire you and provide fresh perspectives on how the steel industry can play a crucial role in driving broader and more effective sustainable change.
Happy reading.
Get a closer look at the current market development for stainless steel and stay updated on the situation within price development of raw materials, energy and transportation as well as the availability of the different product groups.
Read our market analysis here.
Originating from the steel craftsmanship expertise at Ugitech, UGIMA-X is revolutionizing stainless bars with its exceptional quality and tangible benefits. Experience increased productivity, extended tool lifespan, and unique machinability.
Learn more about UGIMA-X here and unlock your production potential.
Our climate calculator just got even better with a brand new feature! Now you can easily access detailed order history and information about the origin of the steel. Plus, explore our extensive library of EPDs for full transparency.
From us, you can order all stainless steel on a successive delivery contract - whether you order our standard products or the special dimensions and grades we don't normally stock. For an agreed fixed price, you can be sure you'll always have your products in reach.
At the core of our sustainability efforts lies a strong commitment to our customers and partners, whom we consider the driving force behind our initiatives. We want to give them the best starting point by offering a range of services, from inspiration to practical tools to make their operations easier in the complex challenge of the upcoming Corporate Social Responsibility Directive (CSRD).
You can read more about this in our new Sustainability report, where we also present our progress, goals, and initiatives in areas such as environmental impact reduction and social responsibility.
Recently, the presence of PFAS/PFOS has been measured in nature and even in humans. This has caused an increased awareness of the presence of PFAS/PFOS, and lots of people have started wondering if they are exposed to PFAS/PFOS anywhere. For an example: Is there any PFAS/PFOS present in the stainless steel?
Fortunately, no! There is absolutely no reason why the mills should add PFAS/PFOS to the steel. And should this happen anyway, it is quickly burnt to form harmless compounds.
Learn more about the subject by reading this article.
All dairy fittings from Damstahl are sourced from European manufacturers, which brings significant advantages to you as a customer in terms of high product quality and less environmental impact due to transport.
Simply use the numbers you have stored yourself in your systems and not only simplify your incoming goods and the traceability of order confirmations and invoices, but also lay the foundation for integrations such as One-Push and EDI connections.
Unique to Danish steel wholesalers, Damstahl has enthroned knowledge and learning. We see the passing of our words of wisdom to our many interested customers as a natural duty. This partly takes place through seminars and consultancy tasks, and partly through our books. Actually, throughout the years, this has resulted in no less than four educational books about stainless steel.
I am honored to receive sponsorship from such a prestigious company and to work with some of the finest quality cutlery money can buy. I'm also faced with the task of sharing my honest opinion of their product. The fact is, I love these knives!
I was eager to get my hands on my new cutlery, to see how my small hands would accommodate the larger, Hammer Stahl chef knives! With arthritis in my wrist and hands, a perfectly balanced and well crafted blade means everything.
The At Home with Rebecka discount Code is...BACON! Just visit hammerstahl.com to view their catalog, pick your favorite products and then type the word BACON into the discount code box at check out! It's that easy! I know you'll love this amazing cutlery as much as I do.
the premier destination for high-quality stainless-steel bright bars. We pride ourselves on our ability to deliver custom-made stainless steel products that are engineered to the highest standards of quality and precision.
Our commitment to quality and precision is reflected in our range of tailor-made solutions for a variety of industries, including automotive, watch material, implant steel, steel for solenoid valves, aerospace, construction, and more.
c80f0f1006