TLORULA ADEXENSIS. 21 



OrdoXVII. UMBELLIFEEvE. 

 1. Pttchotis, Koch. 



1. P. Arabica (T. Anders.). Puberula, caule erecto; foliis gracili- 

 petiolatis, pinnatis vel bipinnatis; segmentis ternatis, profunde lobatis, 

 lobis cuneatis, 3-4-fidis ; radiis 5-8 ; involucris pentaphyllis, laciniis 

 setaceis, subulatis, acutis ; involucellis 3-5-phyllis ; petalis minutis, 

 squamaeformibus, apice mucronatis, mucrone involuto ; carpellis 5-7 ? 

 costatis, costis glanduloso-birsutis. 



Hab. Aden, in cacumiue moutis Jibeel Shumshum (Hook.jil. !). 



Herba pusilla, 2-4-uncialis. Caulis teres, pilis patentibus puberulus. 

 Folia herbacea, subtomentosa seu glabra. Flores inconspicui, in siccig 

 albi. Fructus maturus ignotus. 



OrdoXVlil. EUBIACE^. 

 1. Oldenlandia, Linn. 



1. O. Schimperi (T. Anders.). Caule adscendente vel subdecumbente, 

 scabro-glanduloso ; ramulis virgatis, sparse foliatis ; foliis linearibus, 

 acutis, margine revolutis, mucronatis, obscure glandulosis; stipulis 

 membranaceis, setis 3, subulatis; cymis terminalibus ; calycis seg- 

 mentis brevibus; corolla? tubo longissimo, gracili; capsulis subglo- 

 bosis, truncatis. — Kohautia Schimperi, Hochst. et Steud. in PI. 

 Schimp. n. 879 ; Hedyotis sp.?, Edgevv. Journ. Soc. Asiat. Bengal, xvi. 

 p. 1216. 



Hab. Aden, in arenosis {Edgew., Madden ! Hook. fit. et T. I T. An- 

 ders.). 



Distr. In Arabia Petraea ! in regione Tehama Arabia: Felicis ! Muscat ! 



Perennis, 1-H-pedalis, glabra seu scabrido-glandulosa. Folia 6-9 lin. 

 longa, ^-1 lin. lata; corolla tubus 5-6 lin. longus; limbus 3-4 lin. 

 latus. Corolla fulva. 



I agree with Mr. Bentham in following Asa Gray in uniting Kohautia 

 with Oldenlandia, a genus distinguished from Hedyotis by the dehiscence ; 

 which is loculicidal in Oldenlandia, and septicidal in Hedyotis. 



Ordo XIX. COMPOSITE. 



Subordo Tubulifloej:. 

 1. Vernonia, Schreb. 



1. V. atriplicifolia (Jaiib. et Spach, III. PI. or. t. 359). Suffruti- 

 oosa, ramosa, pilis adpressis incana; foliis petiolatis, carnosis, infimis 

 spathulatis, integerrimis, superioribus ovatis vel sublinearibus, cuneatis, 

 rhomboideis, dentatis, rarissime bidcntatis, subscssilibus ; involucris 



