Heller: plants of the Hawaiian islands. 879 



IPOJIOEA L. Sp. PI. 160. 1753. 



Ipomoea congesta R. Br. Prodr. Fl. Nov. Holl. 485. 1810. 



Ipomoea insularis Choisy; Steud. Nomencl. Bot. Ed. 2, 817. 

 1841. 

 Common on slopes and about the lower edge of the forest on 

 Oahu. The flowers are bright blue when fresh, but turn pink 

 when dried. The rounded, cordate leaves are more or less 

 pubescent on both sides. 

 May 16 (2324). 



Ipomoea pes-caprae (L.) Sw. 



Convolvulus pes-caprae Lt. Sp. PI. 159. 1753. 



Common along the beach in sand, on all of the islands of the 

 group. Collected at Waikiki, near Honolulu. 



April to June (2097); original locality, "in India." 



Ipomoea palmata Porsk. PI. Aegypt. Arab. 43. 1775. 



Hillebrand calls this Ipomoea tuberculata var. trichosperma, 

 but does not state whether it is his own creation, or if he has 

 reduced Ipomoea trichosperma Blume, to a variety. Horace 

 Mann, who was a very acute botanist, determined it as I. pal- 

 mata. Common on the hot, dry, lower slopes, trailing over 

 lava rocks and bushes. It is somewhat variable in leaf form. 

 The flowers are pale red, or pinkish. 



March 29 (2045). 



HYDROPHYLLACEAE. 



CONANTHUS S. Wats. Bot. King Surv. 256. 1871. 



[Nama L. 1759, not L. 1753.] 



[Marilauuidiuin Kuxtze, Rev. Gen. PI. 434. 1891.] 



Conanthus sandwieensis (A. Gray) 



Nama sandwieensis A. Gray, Proc. Am. Acad. 5: 338. 1862. 



A few plants were collected at Waikiki, Oahu, and later sev- 

 eral more at Mana, Kauai, in low ground near the sea. A 

 small plant, in appearance much like the various species which 

 have until recently been called Nama, and which are found in 

 the southwestern part of the United States. According to Mr. 

 Coville, Cont. U. S. Nat. Herb. 4:161, Conanthus aretioides can 

 not be separated generically from the plants which we have 

 wrongly been calling Nama, and therefore Conanthus is the 

 next available name, a fact which Kuntze was not aware of 

 when he proposed Marilaunidium. 



March to August (1956). 



