B. Papp szerk.: Studia Botanica Hungarica 34. 2003 (Budapest, 2003)
Debreczy, Zsolt; Rácz, István: A re-assessment of the new taxa of firs (Abies Mill.) reported from Mexico in 1995
and less glaucous needles (DRB #40323; type). Conifers associated with this fir are Pinuspatula Schltdl. et Cham., P. pseudostrobus Lindl, var. apulcensis (Lindl.) Mart.), and P. teocote Schltdl. et Cham, in its upper distribution, and (a few) P. patula trees in the evergreen cloud forest in the canyon. At the site of the specimen we found 36 accompanying species among which the dominating were Quercus laurina H. et B., Ternstroemia pringlei Rose and Ce strum fasciculatum (Schltdl.) Miers / purpureum (Lindl.) Standi, with Alnus firmifolia Fern., Buddleia cordata H., B. et K., Ptelea trifoliata L., Sambucus mexicana Presl and Syngonium podophyllum Schott. Preservation: declaring the entire canyon as conservation land was proposed. Further study and conservation was planned in collaboration with Dr. Enrique Guizar Nolazco, DCF/UACH. Participants in field work: Dr Gyöngyvér Biró, Dr Zsolt Debreczy, Dr István Rácz (IDRI and Hung. Nat. Hist. Museum, Budapest, Hungary), Eva Kertész (Botanical Collection, Munkácsy Mihály Múzeum, Békéscsaba, Hungary), Vince Zsigmond (University of Horticulture, Budapest, Hungary), Yinghao Zhao (Botanical Garden of the Chinese Academy of Sciences, Beijing, P. R. China). 2. Abies neodurangensis Debreczy, Rácz et Salazar 2 , Figure 1 : al , a2; Plate I: 2 in Phytologia (April 1995) 78(4): 217-243; "Abies B" in News Brief (IDRI) No. 6 (Sep. 1994); Figs 4, 24, 27-28 in the present article. - TYPUS: Mexico, southwestern Durango: near Los Bancos (Ejodi la Victoria Parajé, San Antonio, Ejido El Brillante Parajé, Santa Barbara, Arroyo del Infierno), 2,500 m, May 13, 1994, Debreczy, Rácz, Biró et al. #39936 (Holotypus: BP; Isotypi: A, CHAP, E, MEXU, NA). Arbor ad 40 m alla, trunco simplici; habitus initio laxe conicus, postea densior, vertice rotundata; cortex rasilis, in arboribus juvenilibus pallide cinereus, postea in arboribus vetustis in laminas irreguläres magnas ruptus, pars interior corticis sanguinea; rami fcrruginei, usque ad 5-6 annos sporadice pilosi, pilis subtiliter pellucidis; ramuli pallide virides ad cinereo-brunnei, dense vel in positione umbrosa parce pilosi, pilis pellucidis 0.1-0.15 mm longis; gemmae in ramulis vegetativis typice subglobosae , 2-3 mm longae, non-resinosae, gemmae in ramulis terminalibus planae (6-7 x 3 mm) cum 12-18 squamis triangularibus, 3 mm longis, nitidis, brunneis costa prominenti et margine eroso instructis; folia dichotoma, late distantia, leviter ascendentia, in latere superiori ramulorum prorsus inclinata, aciebus parallelis, apicibus rotundata et leviter (0.1 mm) emarginata; flexibilia, in pagina dorsali viridia, lineis stomatum usque ad 7 paene apicem attingentibus et lineis aliquot prope basin foliorum praeter costam impressam; in pagina ventrali argenteo-alba, cum margine angusto viridi (0.1 mm) et costa (0.25 mm lata), et limitibus lateralibus bilateraliter singulis argenteis, lineis (6—)9(— 10) stomatum instructa; stomata 0.03 mm, ovata; folia in ramulis fertilibus saepe asymmetrice acuta, aliquantum succulenta cum limite pruinoso 0.2 mm lato superne lineis stomatum usque 8; 2 Rosalva Miranda Salazar, UCODEFO No. 6, El Salto, Durango, Mexico.
