Eu-Floridez, Delesseriez, Phitymophora. 697 
HETERODOXIA J. Ag. [1898] Sp. Algar. III, 3, p. 197 (Etym. Zete- 
ros diversus et dooa habitus), Delesserie sp. sectionis Sehzzogloss: 
J. Ag. Epier. p. 495. — Frons foliiformis, costata, subpinnatifide 
decomposita, laciniis sublinearibus, demum subseparatis foliola pro- 
pria (quasi a costa prolificantia) mentientibus, tota avenia, homoeo- 
cystidea, cellulis hexagonio-angulatis, rite superpositis contexta, cel- 
lulis alarum brevioribus, costz?? paulisper elongatis. Cystocarpia in 
vicinia costs, formata, intra pericarpium pleiostromaticum cellulis 
superpositis radiantibus formatum, carpostomio conformiter radiato 
apertum, nucleum simplicem foventia, filis carposporiferis a cel- 
lulis depressis regionis placentaris egredientibus, simpliciuseulis 
et invicem liberis, inferne cylindraceis, superne clavatis, in arti- 
culis terminalibus earposporas obovato-clavatas generantibus, Sori 
in phyllis minutis à costa prolificantibus subpeltatis generati, in 
utraque pagina oppositi, in disco fertili tetrasporangia globosa 
triangule divisa inter cellulas steriles parum mutatas generantes. 
Obs. Genus hoc transitum efficit inter Delesserieas et Nitophyl- 
leas, habitu Delesserzc, structura vero tum frondis tum eystocar- 
pii NZtophyllo proximum. 
1. Heterodoxia denticulata (Harv.) J. Ag. Sp. III, 2, p. 151, Delesseria 
denticulata Harv.in "Trans. Ir. Acad. Vol. 22, p. 548, Phyc. Austral. 
tab. 944, J. Ag. Epicr. p. 475. — Fronde incrassato-costata, di- 
chotoma, rarius prolificationibus a costa emergentibus ramosa, fo- 
liolis linearibus, obtusis, margine denticulatis, evenosis; soris fere 
singulis in phyllis minutis prolificantibus obovatis subecostatis. 
Hab. ad oras Novs:e Hollandisze occidentalis, prima viee ad « Rott- 
nest Island» lecta. — Radix discoidea. Stipes 4-7 cm. longus, car- 
"tilagineus, membranà plus minus alatus, apice ramosus et in co- 
stam lacinias pereurrentem abiens. Segmenta late linearia, obtu- 
sissima, patula, eostà apicem versus obsoletà percursa, margine 
acute et inzqualiter denticulata, undulata. Sori in phyllis minutis 
obovatis laceratis fimbriatisve e costa segmentorum juniorum pul- 
lulantibus evoluti. Frons monostromatica. Color frondis dilute ru- 
ber, in sicco paullulum saturatior. Substantia rigida ita ut speci- 
mina exsiccatione chartz:e vix adh:zerent. 
PHITYMOPHORA J. ^s. [1898] Sp. Algar. IIL 2 p. 172 (Etym. pAhityma 
germen, proles et phoreo fero), Delesseric et Chawvinia sp. — Frons 
costata, prolifieationibus a costa emergentibus ramosa, cellulis in- 
