Tillandsia capillaris Ruiz & Pav., which belongs to the subgenus Diaphoranthema is distributed in Ecuador, Peru, Bolivia, northern and central Argentina, and Chile, and includes forms that are difficult to circumscribe, thus considered to form a complex. The entities of this complex are predominantly small-sized epiphytes, adapted to xeric environments. The most widely used classification defin...

The plant family Commelinaceae displays a wide range of variation in vegetative, floral, and inflorescence morphology. This high degree of variation, particularly among characters operating under strong and similar selective pressures (i.e., flowers), has made the assessment of homology among morphological characters difficult, and has resulted in several discordant classification schemes for t...

Recent attempts to address the long-debated 'origin' of the angiosperms depend on a phylogenetic framework derived from a matrix of taxa versus characters; most assume that empirical rigour is proportional to the size of the matrix. Sequence-based genotypic approaches increase the number of characters (nucleotides and indels) in the matrix but are confined to the highly restricted spectrum of e...

Gigantochloa glabrata N. H. Xia & Y. Zeng ex D. Z. Li C. Xu, sp. nov. , a new species of paleotropical woody bamboo has been described and illustrated from Yunnan, China. The is morphologically similar to G. albociliata levis but differs them by having erect culm sheath blades; ligules 4–6 mm high, truncate, denticulate; with ring white tomentum on the intranode below node. was mistaken...

Among species of the genus Dyckia Schult. & f. there are 13 endemic Brazilian states Rio Grande do Sul and Santa Catarina informally treated as selloa complex. This study employed standard plant anatomy techniques to investigate variation in leaf morphology belonging with a focus establishing characters that help delimit The results allowed survey morphological anatomical important for characte...

An experiment was conducted to evaluate the performance of seventeen genotypes gerbera, viz., Bonmare, Palmbeach, Romella, Natasha, Toro Rosso, Bubblegum, Esmara, Marinilla, Rionegro, Havana, Lexington, Vilassar, Amlet, Nigella, Silky Tears, Fahrenheit and Sona under naurally ventilated polyhouse in Jammu subtropics. The performed Completely Randomized Block Design replicated three times. Among...

Ecological surveys of tropical tree communities have provided an important source of data to study the forces that generate and maintain tropical diversity. Accurate species identification is central to these studies. Incorrect lumping or splitting of species will distort results, which may in turn affect conclusions. Although ecologists often work with taxonomists, they likely make some identi...

Because of the great commercial importance of cotton fibers, their structure at various stages of development has been carefully studied. An indication of the work that has been done along this line may be gained from the papers of Dischendorfer {6),^ Youngman and Pande {63), and Kerr {21), which give a number of literature citations. Structure of the seed {I4, v, 3; 32; 33; 34; 35; 36; 37) and...