PSILOTACEAE 



73 



PSILOTACEAE 



PS I LOT UM Swartz 



PSILOTUM TRIQUETRUM Sw. Syn. (1806) 117. 



Equisetum secundum Rumph. Herb. Amb. 6: 92. 

 Amboina, Amahoesoe, Bato Gadjah, and vicinity of the town of Am- 

 boina, Robinson Pi. Rumph. Amb. £61, 4.62, August and September, 1913, 

 on trees, sea level to an altitude of 150 meters. 



Hasskarl, Neue Schlussel (1866) 167, placed this under Psi- 

 lotum complanatum Sw., but as the Amboina specimens are all 

 referable to P. triquetrum Sw., it is assumed that this is the 

 correct disposition of Equisetum secundum Rumph. 



PTERIDOPHYTA OF UNCERTAIN STATUS 



Filix aquatica II mas Rumph. Herb. Amb. 6: 66. 



Very briefly described in the same chapter with Angiopteris amboinensis 

 DeVr. Hasskarl, Neue Schlussel (1866) 164, has referred it to Pteris 

 longipes Don, but without good reason. Its status cannot be determined 

 from the data given by Rumphius. 



Filix urens Rumph. Herb. Amb. 6: 69. 



This is indeterminable from any data given by Rumphius; perhaps a 

 Dryopteris. 



Lonchitis amboinica recta I major alba Rumph. Herb. Amb. 6: 70. 



Van Alderwerelt van Rosenburgh has suggested that this may be Poly- 

 podium albens Blume. 



Lonchitis amboinica recta II minor Rumph. Herb. Amb. 6: 70. 



Under this two forms are described, nigra and alba, both indeterminable 

 from any data at present available. Willdenow, Sp. PI. 5 (1810) 228, re- 

 ferred the figure, t. SO, f. 2, to Aspidium amboinense Willd., which is supposed 

 to be the same as Dryopteris parasitica O. Kuntze. The figure certainly does 

 not represent the latter species, and there is, moreover, no way of deter- 

 mining which form Rumphius intended it to represent as between the forms 

 major and minor. 



Lonchitis saguaria Rumph. Herb. Amb. 6: 72. Indeterminable. 

 Lonchitis amara Rumph. Herb. Amb. 6: 72. Indeterminable. 

 Lonchitis pilosa Rumph. Herb. Amb. 6: 72. Indeterminable. 

 Lonchitis muscosa Rumph. Herb. Amb. 6: 72. Indeterminable. 



The above four forms are briefly described. A more comprehensive 

 exploration of Amboina may yield data and material by which they can 

 be eventually determined. 



Dryopteris silvestris II arborea Rumph. Herb. Amb. 6: 74. 



Indeterminable. An epiphytic fern, perhaps belonging in the Davalliae 

 as suggested by Hasskarl. 



