Contributions from the Herbarium of Columbia College, Edició 5Columbia College, 1897 |
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Acad achenes acuminate acute AGRIMONIA apex appressed ascending basal leaves base blade bracts branches broad broadly bundles calyx capsule cells Cephalozia chromatin chromosomes ciliate collected Culms cyme densely diameter differs dioicous division drupe elliptic elongated erect Flodman Florida flowers Gaylussacia genus Georgia glabrate glabrous Gray green hairs hirsute internodes involucral lanceolate lateral portions leaf leaflets Lechea Lehm length less lichens ligule linear Little Belt Mountains lobes margins Mountains narrow nearly nodes Nutt oblong obovate obtuse ochrea oval ovate pairs palet panicle pedicels Perennial perianth petals petiole pilose plant Plate Polygonella Polygonum POTENTILLA Primary sporocyte pubescent racemes resembles Rydberg Saxifraga scales segments sepals sessile sheathing petiole short shorter silky slender slightly smaller sparingly species specimens spikelets spireme spores Sporophyte spreading stem stipular stipules tall tetrads tomentose Torr TORREY BOTANICAL CLUB Tradescantia Trillium usually villous Wats wide
Passatges populars
Pàgina 18 - Nat. (VII), 6 : 176. 1887. This paper is the result of an exhaustive anatomical study of stipules and their homologues. The results obtained are of great interest and value. They are admirably summed up at the close of the paper as follows : " When a leaf is sheathing, the sheath may be prolonged in a ligule situated above the point of insertion of the blade upon the sheath. " In this organ three regions may be recognized : " 1. The lateral regions into which the marginal bundles of the sheath are...
Pàgina 22 - Torr. Bot. Club, 23: 249. 1896. The author, referring to his former paper, describes and figures some abnormal leaves of Liriodendron collected from saplings, seedlings and new shoots from old stumps. One in particular of these leaves is of interest on account of its similarity to the fossil leaves of Liriophyllum populoides Lesq. both in the form of the lamina and especially in having a short petiole with broadly winged margins which extend from the base of the petiole and connect with the base...
Pàgina 474 - September iS, 1890. John K. Small and AA Heller. West Virginia, Lone Tree Knob, Summit. CF Millspaugh, MD Flora of West Virginia, No. 450. Montana, Belt Mountains, near Hound Creek. Aug. 2, 1883. F. Lamson Scribner. Wyoming, Laramie Peak. Aug. 8, 1895. Aven Nelson. Flora of Wyoming, No. 1653. I have also received the plant from Lewis and Ulster Counties, NY, and have collected it at York Harbor, Maine, the type locality, and in the Pocono region of Pennsylvana. Type specimens from York Harbor are...
Pàgina 20 - ... Pursh. the bud-scales are described as consisting of the dilated base of the petiole, the lamina being represented by a small black point. " One or two succeeding leaves bear a small lamina sessile on the sheath, which is wholly adnate to the thin dilated base of the petiole and membranous, especially outside of the three vascular bundles. The next one or two have a welldeveloped lamina, and the sheaths partly separated from the petiole and corresponding to stipules. Farther up the stipular sheaths...
Pàgina 171 - Rauken und Schlingpflanzen, 41, 1827), Lindley (Introd. to Botany, Ed. 2, 118, 1835), Link (Elem. Phil. Bot. Ed. 2, 1 : 478, 1837), St. Hilaire (Le9ons de Bot. 170 and 854, 1840), Le Maout (Atlas de Bot. 23, 1846) and Duchartre (Art. vrille in Diet. Univ. Hist. Nat.). Mirbel...
Pàgina 14 - Stipules considtfri-es au point de vue morphologique. Bull. Soc. Bot. Fr. 26: 151-155. 1879. Under this title a summary of the opinions of botanical authorities as to the true nature of stipules is given and the different theories are briefly discussed. Various leaves have been considered as stipules, for example the primary leaves of Asparagus (Dutrochet), the first leaves of the branches of Verbena aphylla Gill & Hook. (Hooker, Bot. Misc. 1: 116. 1830) and of the Piperacese ( C. DeCandolle, Me"m....
Pàgina 19 - Sir John. — On Stipules, their Form and Function. Jour. Linn. Soc. Lond 28: 217-243. 1890. " The primary function of stipules seems to be to protect the bud. In other species, however, they serve as accessory or deputy leaves. Their protective function is confirmed by the fact of their early fall. Some are more persistent than 'the leaves and protect the leaves of the following year. " When stipules are present [in Helianthemum~\ the petiole is always very narrow, seraiterete, and tapered to the...