ICONES FILICUM SINICARUM 
PEATE 204 
ARCHANGIOPTERIS HOKOUENSIS Ching 
ANGIOPTERIDACE 
ARCHANGIOPTERIS HOKOUENSIS Ching, sp. nov. 
Rhizomate crasso, suberecto, 3-4 cm diamtero, radicanti, radicibus incrassatis, teretibus, nigrescentibus, 
simplicibus e facie inferiore rhizomatis abundanter oriundis obtecto; frondibus fasciculatis, stipite ad 50 mm 
longo, 5 mm crasso, carnoso-herbaceo, virescenti, per totam longitudinem nodis 4-5 tumidis geniculatis in 
sicco nigris inter se plus minus fere aequaliter remotis instructo, paleis ovato-lanceolatis basi cordatis atro- 
brunneis copiose onusto praeditis, lamina ambito late ovata, ad 30 cm longa, 38 cm lata, impari-pinnata 
cum pinna terminali majore, 22-20 cm longa, 7-9 cm lata; pinnis lateralibus 2-3 jugatis, omnibus conformi- 
bus, oppositis vel. subalternis, ca. 5-6 cm inter se separatis, 15-20 cm longis, 5-7 cm medio latis, late elliptico- 
lanceolatis, petiolatis (petiolo ca. 1.5 cm longo, tumido, nigricante et paleaceo), apice’ breviter’ caudato- 
acuminatis et grosse serratis, basin versus gradatim cuneatis, marginibus grosse arcuato-serratis aut crenato- 
dentatis; textura chartacea, folia supra atro-viridi, subtus pallidiora, et pilis minutis articulatis modeste 
conspersa; venis lateralibus subrecto-patentibus, conspicuis, plerisque furcatis, rarius simplicibus, prope 
marginem antrorsim curvatis et fere in dentes protensis; soris linearibus, 3-3.5 cm longis, vel longioribus, 
subcontiguis, e 160-240 sporangiis 2-seriatim compositis, parte sterili secus marginem costamque ca. 5 mm 
lata, paraphysibus filiformibus ramosis, articulatis, 10-15-cellularibus, magis quam  sporangiis longioribus, 
densissime obtectis; sporis rotundo-oblongis, minutissime denseque echinatis, hyalinis. 
Southeastern Yunnan: Hokou, Nan-chi, Chu Ve-ming 1726, July 1955, in densely wooded humid ravine, 
alt. 150 m., common. 
A remarkable species, differing from all other known species of the genus in having 4 or 5 nodose 
swellings above the base of the fleshy stipe, the unusually broad elliptico-lanceolate serrate pinnae densely 
glandular hairy on the under surface, the very long sori which extend from near the costa outwards to a 
short distance from the margin, and particularly in the very long dense branched shaggy paraphysate hairs 
almost completely covering the young developing sori. 
Plate 204. 1. Habit sketch (natural size). 2. Portion of pinna, showing venation, serrature and sori, also hairy 
under surface (X 3). 3. Scale from the lower part of stipe (X 40). 4. Two sporangia attached to the receptacle 
with paraphyses (X 20). 5. Two paraphyses removed from the sori (X 60). 6. Spores (X 100) with one 
enlarged (X 400). 
