Flora of Eniwetok — S t. John 
319 
67. Stipules present; petals white 70. Pemphis acidula 
67. Stipules absent, 
68. Carpels several, dry, separate; petals yellow, glabrous 
60. Suriana maritima 
68. Carpels 1 and single, or compound, 
69. Columnar, fleshy trees with palmately dissected blades 
69. Carica Papaya 
69. Not as above, 
70. Stamens 6; petals 4, glabrous, 
71. Pod terete, indehiscent, beaked; leaves pinnatifid 
52. Rap h anus sativus 
71. Pod flattened, dehiscent; leaves entire, 
72. Leaves fleshy, glaucous; sepals erect 
49. Brassica oleracea CV capitata 
72. Leaves thin, greenish; sepals spreading ..50. B. pekinensis 
70. Stamens 8; petals 4, villous within... 36. Ximenia americana 
51. Inner perianth series connate, 
73. Ovary inferior, 
74. Stipules present; trees, 
75. Drupes fully united into compound, soft fruits 83. Morinda citrifolia 
75. Drupes remaining separate, firm, subglobose 82. Guettarda speciosa 
74 . Stipules none, 
76. Vines climbing by tendrils, 
77. Corolla white ..87. Lagenaria siceraria 
77. Corolla yellow, 
78. Corolla lobed half way 86. Cucurbita maxima 
78. Corolla lobed nearly to the base, 
79. Tendrils branched 84. Citrullus vulgaris 
79. Tendrils unbranched 85. Cucumis Melo 
16. Not so, 
80. Llowers separate; corolla slit down upper side, 
81. Leaves glabrous 88. Scaevola frutescens var. frutescens 
81. Leaves appressed pilosulous 89. S. frut. var. sericea 
80. Flowers assembled in involucrate heads, 
82. Heads containing only ray flowers; sap milky 91. Lactuca sativa 
82. Heads with some or all of the flowers disk flowers, 
83. Disk flowers the only ones present, 
84. Corollas 5 -parted; flowers all perfect, fertile 94. V ernonia cinerea 
84. All corollas except the central ones filiform, truncate, fertile, 
85. Blades oblanceolate, serrate or denticulate, 2. 5-3.7 cm. long 
92. Pluchea indica 
85. Blades 10 or more cm. long, oblance-elliptic to lanceolate, entire 
or nearly so 93. P. odorata 
83. Disk flowers at the center, ray flowers on the margin of the head, 
86. Ray flowers minute, not longer than the bracts 
90. Erigeron bonariensis 
86. Ray flowers larger and conspicuous, 
87. Blades sessile, entire; involucral bracts in several series. 
96. Zinnia elegans 
87. Blades petioled, serrate; involucral bracts in 2 series 
95- Wedelia biflora 
