. Allan Hancock Pacific expeditions. [Reports]. Scientific expeditions. 302 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12. Text Figure 3. Polystphonia Hoiuei. The apical portion of a creep- ing axis showing the ascending tip, with one erect branch and several less well developed. Drawn by G. J. Hollenberg. x 195. Polysiphonia Howei Hollenberg n. sp.^^^^ Text Figure 3 Polysiphonia Howei Hollenberg sp. nov. Plants diminutive, creeping, densely matted, and forming patches several centimeters in diameter; prostrate branches 100-170 ju, in diameter, composed of segments mostly about as long as broad or


. Allan Hancock Pacific expeditions. [Reports]. Scientific expeditions. 302 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12. Text Figure 3. Polystphonia Hoiuei. The apical portion of a creep- ing axis showing the ascending tip, with one erect branch and several less well developed. Drawn by G. J. Hollenberg. x 195. Polysiphonia Howei Hollenberg n. sp.^^^^ Text Figure 3 Polysiphonia Howei Hollenberg sp. nov. Plants diminutive, creeping, densely matted, and forming patches several centimeters in diameter; prostrate branches 100-170 ju, in diameter, composed of segments mostly about as long as broad or shorter, and attached by frequent unicellular rhizoids, arising one to several per segment at the distal ends of the peri- central cells, from which they are cut oH by crosswalk; pericentral cells 10-12; branches arising exogenously on all sides and at irregular intervals but mostly either two or four segments apart from the tips of the prostrate branches, spiraling more or less to the right as viewed from the branch tip, the ventral and often the lateral branches either remaining undevel- 191b Polysiphonia Howei Hollenberg n. sp.—Plantae parvissimae repentes inter- textae; ramis procumbentibus 100-170 ij- diam., a rhizoideis adfixis ad apices terminalea circumcentralium cellularum ex segmentis omnibus; cellulis circum- centralibus 10-12; ramis exogenis radiantibus sed inferioribus etiamque saepe lateralibus deficientibus vel in ramos novos repentes transformatis; subsimplicibus erectis ramis primum arcuatis, 2-3 mm altis, raro 5 mm, 70-150 \i diam.; tricho- blastis ad apices ramorum numerosis, demum deciduis; tetrasporangiis singulis in serie longa, 40-55 \i diam.; reproductio sexualis ignoto. Planta typica in loco dicto Whale Cay, Berry Is., Bahamas, legit M. A. Howe no. 3478, Jan. 29, 1905, in herb. New York Botanical Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appeara


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