Stigonema congestum N.L.Gardner

• Region

  West Indies

• Country

  Puerto Rico

• Locality

  Santurce, on trunks of palms in the Park

• Coordinates

  18.4482, -66.0718

• Coordinate Uncertainty (m)

  5001.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Santurce. Measured from coord. to farthest extent of the district to find linear ext. (4990 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

<

t—

o

m

v

cc

o

CD
CO
LO
:G)

:o

?O

NEW YORK
THE NEW YORK BOTANICAL GARDEN^

DARIUS OGDEN MILLS FUND	BOTANICAL

FRESHWATER ALGAE OF PORTO RICO
COLLECTED BY PROFESSOR N. WILLE
Humacao January 20-24, 1915

CARDEN

« 5 .

; s)
) t~

''V.,.'

No

£7.0.¿i.

Determined by Francis Drouet

¡v. i<w

Q

Ü

<

o

im

CD

CO

UO

THE NEW YORK BOTANICAL GARDEN

DARIUS OGDEN MILLS FUND

FRESHWATER ALGAE OF PORTO RICO
COLLECTED BY PROFESSOR N. WILLE
Hacienda Catalina near Palmer Jan. 2S->

HKWYORK

BOTANICAL

GARDEN

CC-

O'

(J)

O

O

No. WI

'twCW d&vl

(3?/ zj;

fa/JJ

CT y Pt ^	Ou^Ljrv . J

Determined by Francis Drouet

tv. mi

Stigonema congestum sp. nov.

Plate 21, figure 52

Filaments 150—225 m long, 12-15 n diani., very much con-
torted and intertwined, forming a thin, dense stratum; branches
numerous, of 2 or 3 orders, all of similar diameters, slightly con-
stricted at the base, arising at right armies, but soon bending up-
ward ; cells uniseriate or when aged in part pluriseriate, closely
crowded* irregular in form, about one-half the diameter long,
homogeneous; cross-walls thin; tegument thin, firm, smooth,
homogeneous, dark brown; heterocysts fairly abundant.

Growing on stones near Hacienda Catalina, Palmer, no. 791,
type; on rocks near San Lorenzo, no. 503; in a stream about five
kilometers east of Coamo, no. 1886 e; on “Flytteblok,” west of
. Humacao, nos. 570 a and 571 b; on red earth by the road, Haci-
enda Catalina, Palmer, no. 776; on red earth by the road north
of Maricao, no. 1241; on trunk of a palm tree at Santuree, no. 23;
on lava north of Sabana Grande, no. 923 a and 936.

)ttw X ij WAMud-. 2i $f. j£- ssl /U7.