Pteridophyten — Floristik, Geographie, Systematik etc. 205 



Philippine Islands, mainly upon specimens collected by the 

 author, these being cited by nuraber. The species are: Alsophila 

 Clementis, Cyathea Christa, Trichomanes Merrillii, Polystichutn ble- 

 pharistegium, P. nudum, Stenosemia pinnata, Leptochilus hydrophyl- 

 lus. Nephrolepis glabra, Davallia brevipes, D. embolostegia , Micro- 

 lepia dennslaedtioides, Dennstaedtia Williamsi, Lindsaya Havicei, L. 

 cyathicola, Diplasium tabacinum, D. Williamsi, D. Whüfordi, D. 

 fructiiosum, D. davaoense, D. dolichosorum, Asplenium Stantoni, 

 Scolopendrium schisocarpum, Stenochlaena subtrifoliatä , Plagiogyria 

 Christa, P. tuberculata, Adiantum mindanaoense, A. Spencerianum , 

 Schisostege pachysora, S. calocarpa, Pteris pluricaudata, P. caesia, 

 Vittaria alternans, V. taeniophylla , Prosaptia cryptocarpa, P. Top- 

 pingii, Polypodium dolichosorum, P, pseudoarticulaliim, P. multicau- 

 datum , P. erythrotrichum , P. Yoderi, P. {Schellolepis) pseudoconna- 

 tum, P. (Phymatodes) lusonicum, P. {Phymatodes) dolichopterum , P. 

 [Phymatodes) rivulare, P. {Phymatodes) phaiierophlebium , P. {Phyma- 

 todes) protens; and also the following new varieties: Htimata im- 

 mersa nana, Plagiogyria pycnophylla mixta. 



Two new genera also are described. The first of these is Acro- 

 sorus, related to Prasoptia, with 3 species of which 2 occur in the 

 Philippines, viz.: Acrosorns exaltata Copel. {Davallia exaltata Copel.) , 

 and A. Frederici et Pauli (Christ.) Copel. {Davallia Frederici et Pauli 

 Christ.). The second new genus is Thayeria, allied to Drynaria, with 

 a Single species, T. cornucopia Copel., from Mindanao, and a second 

 species T. nectarifera (Baker) Copel. {Polypodium nectariferum Baker), 

 this known from New Guinea and northern Luzon. 



Notes upon many of the earlier species are given. The plates 

 published mainly illustrate the proposed new species. Maxon. 



Kirk, G. L., New stations for ferns in Vermont. (Rhodora. 

 X. p. 196. October, 1908.) 



Notes upon the occurrence of Woodwardia virginica and peculiar 

 incised form of Osmunda cinnamomea in Vermont. Maxon. 



Engler, A. Beiträge zur Flora von Afrika. XXXIV. (Engler's 

 Bot. Jahrb. XLIII. 1/3. p. 1—224. 1909.) 



Enthält folgende Einzelarbeiten: 



1. R. Muschler, Systematische und pflanzengeogra- 

 phische Gliederung der afrikanischen Senecio- Arten, 

 (p. 1 — 74, mit 1 Fig. im Text). 



2. F. Pax, Euphorbiaceae africanae IX. (p. 75—90). 



3. R. Pilger, Gramilae africanae VIII. (p. 91—96). 



4. E. Gilg, Balsaminaceae africanae. (p. 97 — 128). 



5. K. Krause, Rubiaceae africanae IL (p. 129 — 160). 



6. A. Engler, Olacaceae africanae. (p. 161 — 170). 



7. A. Engler, Opiliaceae africanae. (p. 171 — 176.) 



8. A. Engler, Octoknemataceae africanae. (p. 177—178). 



9. A. Engler, Icacinaceae africanae. (p. 179—188, mit 2 Fig. im 

 Text). 



10. A. Engler, Aizoaceae africanae. (p. 189 — 198, mit 4 Fig. im 

 Text). 



11. M. Gurke, Ebenaceae africanae III. (p. 199-213, mit 4 Fig. 

 im Text). 



