Heller : PLANTS OF THE HAWAIIAN ISLANDS. 915 



AGERATUM L. Sp. PL 839. 1753. 



Ageratum conyzoides L. Sp. PI. 839. 1753. 



A common weed about the streets of Honolulu, and on the 

 lower slopes near the city. Said to be diffused over the whole 

 group. 



March 25 (1999); original locality, "in America." 



APHANOPAPPUS Endl. Gen. PI. Suppl. 2, 43. 1842. 



[Schizophyllum Nutt, Trans. Am. Phil. Soc. (II) 7:452. 

 1841, not Fries.] 



The following is Nutall's original description of this genus, 

 the type of which is Schizophyllum micrantjium, collected on 

 "the island of Atooi (Kauai) in shady woods, near Koloa." 

 "Capitulum few flowered, heterogamous. Rays feminine, two 

 or three bidentate; discal florets subcampanulate, five toothed. 

 Involucrum small, oblong, imbricate, about five leaved. Re- 

 ceptacle paleaceous, the scales resembling the involucrum, em- 

 bracing. Discal stigmas hirsute, with a slender conic apex. 

 Achenia of the ray turgid, indurated, three or four sided, ob- 

 tuse and turbinate, those of the disk abortive, subquadrangular. 

 Pappus none, or a slight vestige of an aristate crown. An her- 

 aceous plant of the Sandwich Islands, with diffusely trailing, 

 oppositely branching, quadrangular stems, and opposite pseudo 

 bipinnate leaves. Flowers yellow, usually terminal in threes, 

 nearly sessile." 



Aphanopappus inieranthus (Nutt.) 



Schizophyllum micranthum Nutt. Trans. Am. Phil. Soc. (II) 7: 



452. 1841. 

 Aphanopappus nuttallii WaIjY. Rep. 2:620. 1843. 

 Lipochaeta micraniha A. Gray, Proc. Am. Acad. 5: 131, 1862. 



The leaves of this species are somewhat variable, and one 

 who sees a branch with young leaves only, might be tempted 

 to suppose that it is a distinct p!ant from one which has older 

 leaves. The stems are usually five or six feet long, weak and 

 somewhat climbing. The leaves are lanceolate, twice or thrice 

 pinnately parted or divided. The inconspicuous, pale yellow 

 flowers are easily overlooked, as they are almost sessile, and 

 hidden by the numerous, crowded leaves. It is plentiful in 

 Hanapepe valley, Kauai, on moist, shaded banks, and was also 

 collected above Waimea, at the base of the plateau. 



June to September (2439). 



