. Dansk botanisk arkiv. Plants; Plants -- Denmark. in others it is reduced to an often narrow belt lying a little above the middle of the cell. The sporangia are monosporous, oblong- ovate, 9—11—13// long, 6—9, mostly 7—8// broad. They are as a rule sessile and usually secundly seriated in long rows placed on the inner (upper) side of the branches from the base upwards (Fig. 25 a); but more scattered sporangia also occur (Fig. 27) just as pedicellate sporangia are by no means rare. The present plant has a great likeness to Chantransia Hypneæ but this differs in having Fig. 28. Acrochæ- endophy
. Dansk botanisk arkiv. Plants; Plants -- Denmark. in others it is reduced to an often narrow belt lying a little above the middle of the cell. The sporangia are monosporous, oblong- ovate, 9—11—13// long, 6—9, mostly 7—8// broad. They are as a rule sessile and usually secundly seriated in long rows placed on the inner (upper) side of the branches from the base upwards (Fig. 25 a); but more scattered sporangia also occur (Fig. 27) just as pedicellate sporangia are by no means rare. The present plant has a great likeness to Chantransia Hypneæ but this differs in having Fig. 28. Acrochæ- endophytic basal filaments. Further it is also «mm s^ia«urn noV. pgig^^^g^j \^q Acrochætiiwi flexuosiim Vickers. But ments with spor- in this plant the monospores are secund upon ^^^?50 .^f;^°^^* short ramuli, while in the present the ramuli are wanting, the monospores being placed in long series upon the branches. This species has been found mostly in more sheltered localities. It seems to be common. St. Croix: Coakley Bay, Christians- sted, Lt. Princess, Sandy Point; St. Tho- mas: The Harbour. 9. Acrochætium flexuosum Vickers. Vickers, A., Liste des Algues de la Barbade. (Ann. sciences nat. IX Sér., Bot. 1905, vol 1, p. 60). A quite certain determination derived from the somewhat imperfect diagnosis of M"'' Vickers seems impos- sible, and had the plant I now suppose to be this species not grown upon Chætomorpha antennina it had perhaps not occurred to me to refer it to this species. The plant found forms dense tufts about 700/i high; it has a large base Fig. 29. Acrochætium flexuosum composed of creeping filaments more Vickers^ a.^part^o| or less fusing together in the inner angia. b, a young plant. ^^Yi. («. about 125:1. b, about 160:1).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origina
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Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants
