Acrochaetium ernothrix Børgesen

NEW YORK
BOTANICAL
GARDEN.
22. Acrochaetium ernothrixj nov. spec. B^rg.
Dansk Bot. Ark.3?;5s 1915.
»V»
Thallus caespitosus, oa. 400 ji altus. pars basalis non
certo osservata est. Fila erecta a "basi ramosa. Rami principales
strie ti, in inferiori parte paucis, in supe riori numerosis ramis
et ramniis instructi.
Cellulae ramorum 5-6 latae et 15-18 ji longae, cylindricae,
chromatophorum zonatum prolongationibus irregularibus instructum
et pyrenoide centrali munitum continentes.
Raiirali sporangiferi e 2-3, rarius pluribus oellulis compo-
siti, ad apicem versus angustati in pseudopila longa produoti.
Ivlonosporangia sessilia aut pedicellata, lateralia 2-3 seriatim
posita, rarius terminalia, ovato-oblonga, 8-10 u longa et 5-6
yi lata.
This species was gathered in a sheltered locality behind
long Reef at it. Princess, St. Croix.
02141497