A New Species of Zornia (Leguminosae, Papilionoideae) from Northeastern Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Zornia grandiflora Fort.-Perez & A. M. G. Azevedo (Leguminosae, Papilionoideae), a new species from Bahia and Pernambuco states in northeastern Brazil, is described and illustrated. The new species is assigned to section Anisophylla Mohlenbr. of subgenus Zornia J. F. Gmel. Zornia grandiflora is similar to Z. sericea Moric., sharing erect stems and ovate to elliptic bracteoles. It can be distinguished from Z. sericea and from other species within Zornia sect. Anisophylla by the large standard (13-17 mm long).2013537Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundacao dui Amparo a Pesquisa do Estado de Silo Paulo [06/6164-8-4]Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CNPq [141324/2005-8]Fundacao dui Amparo a Pesquisa do Estado de Silo Paulo [06/6164-8-4

The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study

AIM: The SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery. METHODS: This was an international prospective cohort study of consecutive colorectal cancer patients with a decision for curative surgery (January-April 2020). Surgical delay was defined as an operation taking place more than 4 weeks after treatment decision, in a patient who did not receive neoadjuvant therapy. A subgroup analysis explored the effects of delay in elective patients only. The impact of longer delays was explored in a sensitivity analysis. The primary outcome was complete resection, defined as curative resection with an R0 margin. RESULTS: Overall, 5453 patients from 304 hospitals in 47 countries were included, of whom 6.6% (358/5453) did not receive their planned operation. Of the 4304 operated patients without neoadjuvant therapy, 40.5% (1744/4304) were delayed beyond 4 weeks. Delayed patients were more likely to be older, men, more comorbid, have higher body mass index and have rectal cancer and early stage disease. Delayed patients had higher unadjusted rates of complete resection (93.7% vs. 91.9%, P = 0.032) and lower rates of emergency surgery (4.5% vs. 22.5%, P < 0.001). After adjustment, delay was not associated with a lower rate of complete resection (OR 1.18, 95% CI 0.90-1.55, P = 0.224), which was consistent in elective patients only (OR 0.94, 95% CI 0.69-1.27, P = 0.672). Longer delays were not associated with poorer outcomes. CONCLUSION: One in 15 colorectal cancer patients did not receive their planned operation during the first wave of COVID-19. Surgical delay did not appear to compromise resectability, raising the hypothesis that any reduction in long-term survival attributable to delays is likely to be due to micro-metastatic disease

Zornia subsessilis (Leguminosae : Papilionoideae : Dalbergieae), a new species from Serra do Cabral, Minas Gerais, Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Zornia subsessilis, a new species from Serra do Cabral, Minas Gerais State, Brazil, is described and illustrated on the basis of field and herbarium studies. It belongs to Zornia section Zornia of subgenus Zornia and it appears to be restricted to 'campo rupestre' (rocky fields) within the 'cerrado' biome. This new species is characterized by its sessile to subsessile leaves, fruits with articles 4 to 5 mm long and with bristles up to 3.5 mm long.603271273Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP [FAPESP-proc. 06/61648-4

Nomenclatural Changes for Zornia (Leguminosae, Papilionoideae, Dalbergieae) in Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)While studying the species of Zornia J. F. Gmel. (Leguminosae, Papilionoideae, Dalbergieae) from Brazil for taxonomic revision of the genus, eight lectotypifications are proposed: Hedysarum bifolium Veil., Z. diphylla (L.) Pers. var. bernardinensis Chodat & Hassl., Z. diphylla var. elatior Benth., Z. diphylla f. ciliata Chodat & Hassl., Z. myriadena Benth., Z. perforate Vogel, Z. reticulate Sm., and Z. sericea Moric., as well as two neotypifications for Z. brasiliensis Vogel and Z. ovata Vogel. A new combination. Z. vichadana (Killip ex Mohlenbr.) Fort.-Perez & A. M. G. Azevedo is proposed, based upon Z. pardina Mohlenbr. var. vichadana Kilip ex Mohlenbr. Eighteen new synonymizations are also included.213331337Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CNPq [141324/2005-8]FAPESP [06/61648-4

Phylogeny and biogeography of the genus Zornia (Leguminosae: Papilionoideae: Dalbergieae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)The genus Zornia has a pantropical distribution and comprises 80 species in two subgenera (Myriadena, Zornia) and three sections (Zornia, Isophylla, Anisophylla). The genus is characterized mainly by flowers arranged in a spiciform inflorescence, with paired peltate bracteoles protecting each flower, and stipules that resemble the bracteoles. Phylogenetically Zornia is a member of the informal Adesmia clade of the Dalbergioid group, being most closely related to the predominantly South American genera Poiretia and Amicia. Phylogenetic analyses of DNA sequence data from the internal transcribed spacer region of nuclear ribosomal DNA and the plastid trnL-trnF intron and spacer, including multiple accessions of species of all subgenera and sections, support the monophyly of Zornia and indicate that Poiretia is sister to Zornia. All traditional subgenera and sections of Zornia are resolved as para- or polyphyletic in our study. Nevertheless, two major clades can be recognized. Time-calibrated phylogenetic analyses suggest that most Zornia species diverged 8-10 Ma and reveal that only one migratory event occurred within the genus ca. 5 Ma from America to the Old World probably via long-distance dispersal.624723732Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundo de Apoio ao Ensino e a Pesquisa (FAEPEX/Unicamp)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CNPq [proc. 141324/2005-8]FAPESP [proc. 06/61648-4 e FAPESP (Tematico) - 00/12469-3