摘要:

A number of S. E. Asian taxa of Acanthaceae are here recognized as belonging to the prevailingly African genusIsoglossa. The reasons for doing so are briefly outlined. The synonymy, as regards S. E. Asian Isoglossa, is worked out, generic as well as specific. The following new combinations are formally made:Isoglossa clemensorum(R. Benoist) comb. nov.,I. collina(T. Anderson) comb. nov.,I. geoffrayi(R. Benoist) comb. nov.,I. glabra(Hand.‐Mazz.) comb. nov.,I. inermis(R. Benoist) comb. nov., andI. subcordafa(C. B. Clarke) comb. nov. The distribution is outlined and mapped.I. dichotomais shown to occur in Africa, whereI. lactea, andI. strigosulaare sunk into its synonym

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02065.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02066.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

East African material of the genusHypoxisL. has preliminarily been divided into the heterogenous, probably apomicticH. obtusaBurch‐ complex (2n = 40–50, ca. 75, 76, ca. 85,>86, ca. 92, ca. 98, ca. 108, 130–135, 160–200) and 5 rather homogenous species:H. angustifoliaLam. (2n = 14, 28),H. goetzeiHarms (2n = ca. 62),H. kilimanjaricaBak.,H. malosanaBak. (2n = 14) andH. macrocarpaHolt&Staubo sp. nov.H. kilimanjaricais divided into ssp.kilimanjaricaand ssp.prostrataHolt&Staubo s

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02067.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Fourteen species ofCryptocoryneare recognized from Borneo: C.ciliatafound throughout tropical Asia,C. longicaudaalso found in Johore;C. zonata, C. grabowskii, andC. edithiaeshow distinct affinities to theC. cordatagroup from the Malay peninsula; the remaining species, endemic to Borneo, do not show any special, close relationship with species from other areas. The synonomy, distribution, chromosome numbers, and ecology are treated.

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02068.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

The new genusIphionopsis A. Anderb. (Compositae‐Inuleae‐Inulinae) is described with its two species, transferred from the genusIphionaCass.,I. rotundifolia(Oliv.&Hiern) A. Anderb. from Ethiopia, Somalia, and Kenya, andI. ilicifolia(Humbert) A. Anderb. from Madagascar. The genus is monophyletic, defined by a number of synapomorph

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02069.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

The new speciesPegolettia gariepina A. Anderb. from Namibia and the northwestern part of South Africa is described. An illustration and a distributionmap is also provided.

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02070.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02071.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Ctenophrynium unilaterale(Baker) K. Schum. was described from cultivated material reported to have been brought from Madagascar. It has recently been recollected in the state of Bahía, SE Brazil. A reexamination shows good agreement with the Brazilian genusSaranthe(Regel&Koern.) Eichl. The recombinationSaranthe unilateralis(Baker) L. Anderss. is made and the genusCtenophryniumis reduced to a synonym ofSaranthe. The plant is redescribed and illustrated

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02072.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02073.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Observations on morphological and anatomical features ofCuscuta pedicellataand, to a lesser extent,C. campestrishave been made at different stages of their life‐cycles. The seedling is filiform with a bulbous radicular end which collapses early. The simple shoot apex is green and photosentitive. Initial “nutation” is followed by “creeping” over the substrate. Host plants less than about three weeks old seem not to be attacked byCuscutaseedlings. When haustorial contact is established the shoot apex differentiates into buds and scale leaves. The chlorophyll disappears and stomata, which are lacking in the seedling, develop. The apical growth rate increases strongly by frequent cell division and ‐ elongation. This is reflected anatomically by the formation of “cell families” in rows. Weakening and flowering of the host plants are followed by flowering of the parasite. Greening of stem segments ofCuscutaoccurs during formation of haustoria and after death of the host. Stem anatomy is characterized by a tripartite cortex in which the middle layer consists of thin‐walled angular cells. Characteristic are also the voluminuous intercellular spaces, the cortical and perivascular laticifers, and the central position of the small vascular bundles. Observations on self‐parasitism were made. The epidermis of the haustorial cushion elongates and the cytoplasm is mainly positioned towards the host. Pseudo‐intercellular spaces are formed between the epidermal cells. The haustorium connects the phloem of the two plants, but vascular elements of any kind h

ISSN:0107-055X    

DOI:10.1111/j.1756-1051.1985.tb02074.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY