Sphacelaria taitensis Setch.

• Region

  Oceania

• Country

  French Polynesia

• State/Province

  Windward Islands

• Locality

  Tahiti, reef at Punaruu Pass

• Coordinates

  -17.6283, -149.613

• Coordinate Uncertainty (m)

  3763

• Georeferencing Method

  Georeferencing Quick Reference Guide (Zermoglio et. Unable to locate reef/pass, used halved distance from mouth of Punaruu Valley to nearest named feature, Atitara Valley, to approximate geographic radial.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Sphacelaria taitensis Setchell, sp. nov.

Univ.Calif.Pubi.Bot,12:86.pi.13.f.1-3. 14 My 1926;

In caespitibus extensis, caespite quoque hemispherico,
ad substrata solida affixis luteo-fuscis, usque ad 1.5 cm.
altis; filanentis erect is,, basi e filamenti3 curtis stolon-
oidei3 in disco irregulari coalescentibus generatis, supero
alterne aut secunde ramosis; filament is primari is basi 40-60
}i,,apice 32 u diam. , articulis basalibus, 54-64 u, terminalibus
circa 32 }i longis, basalibus 4-5, terminalibus 1-2 dissepimenta
verticalia a latere viso ostendentibus, dissopirnentis trans-
versalibus secondariis abeuntibus; propagulis a latere visis
late triangularibu3, 120-260 yi altis (stipite gracili, 60-80 y
longo et 3-5-cellulari incluso) 120 u latis (trans cornua),
eornuis,2, quoque 3-cellulari, gracilibus, leviter sursum pro-
jicientibus; pilis, zoosporangiis et gametangiis, nondum visis.
(Type Herb. Univ. Calif., 2Io. 262669.)

The proposed new species belongs to the group of South
Pacific species, 3* cornuta, S. novae-hollandiae, and S. novae-
caledoniae. It approaches the last in dimensions but has differ-
ent propagula, which in turn approach those of S. cornuta in
shape, but the main portion is broader while the horns are shorter,
possibly 3touter, and more suddenly tapering.

5252. Forming extended patches made up of hemispherical tufts
on the smooth reef surface, in shallow pools, reef at Punaruu Pass,
July 11.

UNIV. CALIF. PUBL. BOT. VOL. 12	[SETCHELL] PLATE 13

Sphacelaria taitensis Setchell

Pig. 1. Diagram of liabit of typical plant above the base (No. 5252).
X 12.5 diam.

Tig. 2. Tips of filaments with hairs (No. 5252). X 75 diam.

Pig. 3. Portion of filament with propagula (No. 5252). X 75 diam.

PLATE 13

Plants of Tahiti, Society Islands

Collected by W. A. Setchell and H. E. Parks, under the auspices of
the Department of Marine Biology of the Carnegie Institution of Washington,
D. C., May, June, and July, 1922.

Sphacelaria taitensis sp. nov.

•---------Setchell

Reef at Punaruu Pass
July II

no. 5252

ÉtüTANÍCAL

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Det.: Y.-S. Keum Date: S' a!w:
Seoul National University (SNU)

00937466