vol. 32, Nº 54 - Fundação Biblioteca Nacional

LARSON, P. R 1976. Development and organization of the secondary vessel systera in Populusgrandidentata.
Am. Jour. Bot. 63 (3): 369-381.
1976. Procambium vs. cambium and protoxylem vs. metaxylem in Populus deltoides
seedlings. Am. Jour. Bot. 63:1332-1348.
et PlZZOLATO, T. D. 1977. Axillary bud development in Populus deltoides. I.
Origin and early ontogeny. Am. Jour. Bot. 64: 835-848.
-et ISEBRANDS, J. G. 1978. Functional significance of the nodal constricted zone
in Populus deltoides. Canad. Jour. Bot 56: 801-804.
LARSON, R I. et ATKJNSON, T. G. 1970. Identity of the wheat chromosomes replaced by
Agropyron chromosomes in a triple alien chromosome substitution Une immune to
wheat streak mosaic. Canad. Jour. Genet. Cytol. 12: 145-150.
LA RUE, C. D. 1933. Inrumescences on poplar leaves. I. Structure and development. Am.
Jour. Bot. 20: 1-17. f. 1-9.
1933. Inrumescences on leaves of EucaJypfus comuta, Eucalyprus coecifera, Hieracium
venosum, Mitcheüa repens and Thurberia thespesioides. Phytopathology 23: 281-
289. f. 1,2.
-1936. Inrumescences on poplar leaves. III. The role of plant growth hormones in
their produetion. Am. Jour. Bot. 23: 520-524.
—1936. The growth of plant embryos in culture. Buli. Torrey Club 63: 365-382.
-1937. The part played by auxin in the formation of internai inrumescences in the
tunnels of leaf miners. Buli. Torrey Club 64 (20): 97-102. f. 1.
et AVERY, G. S. JR. 1938. The development of the embryo of Zizania aquática
in the seed and in artificial culture. Buli. Torrey Club 65 (1): 11-21. f. 1-8.
—1942. The rooting of flowers in sterile culture. Buli. Torrey Club 69: 332-341. f. 11.
-1948. Regeneration in the megagametophytc of Zamia floridana. Buli. Torrey Club
75:597-603. f. 1,2.
1954. The extiaordinary funiculus of Acácia confusa Merrill. Rhodora 56: 229-231.
-et NARAYANASWAMI, & 1955. The morphogenetic effects of various chemicals
on the gemmae of Lunularia. Buli. Tonrey Club 82: 198-217.
LASER, K. D. 1978. A scanning electron microscopic study of the trichomes in Brasenia
schreberi. Mich. Bot. 17: 83-91.
LAU, E, GOLDOFTAS, M, BALDWIN, V. D., DAYANANDAN, R, SRINIVASAN, J. et
KAUFMAN, P. R 1978. Structure and localization of silica in the leaf and internodal
epidermal system of the marsh grass Phragmites australis. Canad. Jour. Bot. 56: 1696-
1701.
LAUBENGAYER, R A 1937. Studies in the anatomy and morphology of the polygonaceous
flower. Am. Jour. Bot. 24: 329-343. f. 1-44.
1948. The vascular anatomy of the four-rowed ear of com. Ann. Mo. Bot. Gard. 35:
337-340.pl. 16. f. 2-13.
-1949. The vascular anatomy of the eight-rowed ear and tassel of golden baniam
sweet com. Am. Jour. Bot. 36: 236-244. f. 1-70.
LAUGHTON, E M. 1964. Occurrence of fungai hyphae in young roots of South African
Lndigenous plants. Bot. Gaz. 125: 38-40.
LAVIALLE, P. et DELACROX, J. 1923. Caracteres histologiques du pericarpe et dehiscence
du fruit chez les Euphorbes. BuU. Soe. Bot. France 69:585-590. f. 1-2.
LAWALRÉE, A 1943. La multiplication vegetative des Lemnacc'es, cn particulier chez VVolffia
anhiza. (Rechcrches embryologiques et cytologiques). Cellule 49: 337-382. pi. 1-8.
f. 1-23.
1948. Histogenèse florale et végétative chez quelqucs composíes. La Cellule 52:
215-294. pL 1-6. f. 1-7.
LAWRENCE, D. R 1949. Self-erecting habit of seedling red mangroves (Rhizophora mangle
L). Am. Jour. Bot. 36: 426-427.
LAWRENCE, D. K. 1976. Morphological variation of Elodea in wcstcrn Massachusctts; ficld
and laboratory studies. Rhodora 78: 739-749.
LAWRENCE, J. R 1937. A correlation of the taxonomy and the floral anatomy of certain of
the Boraginaceae. Am. Jour. Bot. 24: 433-444. f. 1-58.
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