CONTENTS. 
CLASSIFICATION OF THE GENUS ANNONA WitH Descriptions or New AND Im- age. 
PERFECTLY Known Species. By W. E. Safford........--. pee eee ceeeeeeee 1 
Division of the genus into natural groups........-..-20022- cece cece ee eeee 1 
Introductory notes..........----- cece cece eee cece eee e nee enenees 1 
Characters of the genus............. 00 ee cece eee eee e eee ee eee ee eeeee 1 
Geographical distribution. ............2- 22sec eee ee eee eee eee eee eee 4 
Species incorrectly referred to Annona.........------+--+eee cece eee 5 
Scheme of the proposed subdivisions. .........-.++----eeeee cece eee 6 
Key to the groups. .......------ 2. eee eee eee ee cnet eee neces 6 
Characters of the groups and sectionS.............2.--eeeeeeeee cece 6 
Group Guanabani (soursopS)........---- 2022 ee eee ee eee eee eee eeee 6 
Section Euannona. ......... 6. eee ee eee eee eee ences 7 
Section Psammogenia. ............ 22-2 ee eee eee eee eee eee eee 8 
Section Ulocarpus.............0s cece ee cece ence cece cece cece 9 
Group Pilaeflorae (silky Annonas)..............0+-2eeeeeeeeeeee 10: 
Section Helogenia.......... 2.2... e eee eee eee eens ll 
Section Pilannona. ....-..- 2-222 cece eee eee cece eee eee 12 
Section Gamopetalum................ 202 e ee eee cece eee eens 13 
Group Acutiflorae (sharp-petaled Annonas)................-..+-- 14 
Section Phelloxylon............-2 see cece cece eee e cece eee ees 14 
Section Atractanthus........... 2. eee erence eee ence eee eee 15 
Group Attae (custard apples)........... 20-2 e eee ee eee eee eee eee 16 
Section Chelonocarpus. ............0ee cece eee ee eee cece cees 18 
Section Atta.......... 2... cece eee eee eee eee eeee 18 
Section lama. ..... 2... cece e eee eee cece eee eceeeces 19 
Section Saxigena..... 22.0... cece eee cece cece ene tence eeeee 20 
Group Annonellae (dwarf Annonas)........-------++++--eeeeeeee 21 
Section Annonula............200 0s cece eee eee cece eee ee eeee 21 
Section Annonella................ 2022 cece cece eee eee cence 21 
New and imperfectly known species of Annona. .......-.--.------++e-e- 22 
Plants originally described under Annona but generically distinct......... 58 
Rollinia, Duguetia, and Raimondia, genera already established . ..... 58 
Fusaea and Geanthemum, new Zenera........... 2 eee eee eee eee eens 64 
New or NorewortTHy PLANTS FROM COLOMBIA AND CENTRAL AMERICA—4. 
By Henry Pittier............ 2.2. eee eee ee eee eee ee eee eee eee eeeeerees 69 
Introduction.............-- wee eee cece eee e ces eceeeeeee wee eeeeeees 69 
Moraceae. ..... 2... c eee eee ee cece eee cece cece ee eeeeeeeee beeen cence nceeee 69 
A new species of Brosimum from Costa Rica.........-.0+ee eee e eee ees 69 
Euphorbiaceae.........-.- 02. e cece cence ee eee eee e eee e eee eeteeeeccees 70 
Further notes on species of Sapium . . .........22eenee cece eeeeeeeeee 70 
Anacardiacene..........0. 2. cece eee eee eee cece eee e eee eeeneees 75 
A new species of Spondias from Costa Rica........-...eseeeeeeeeeees 75 
Sapotaceae ... 2... ee eee e eee e cent ene e ner e ene cece eeececeeeeee 76 
Zapotes and Zapotillos. ........ece cece cece cece cece ces eeeeeneeeeees 78 
