Thank you Vijayasankar ji. The key character of anther cells can not be seen from pictures but I will look for that since I know both plants distinctly. Rhinacanthus occurs in semi-evergreen habitats and the other occurs in rocky dry hills. Pls look at the pictures posted in a seperate post. Many pictures on net show a lot of confusion between these 2 plants. So far I did not feel the need for a microscopic study but I will now carry it when feasible. Regards, Shrikant
On May 13, 10:21 pm, Vijayasankar <[email protected]> wrote: > Dear Sir, > > Thank you very much for the response. > I referred Cooke's flora to know more about these plants. > The following points of him for *Rhinacanthus nasutus* are matching with the > plant posted here**. (Cooke's descriptions for *Hypoestes lanata* are given > in parenthesis, in red font): > 1. Corolla white, no mention about purple spots on lip (corolla pale purple, > lower lip spotted with dark purple at the base) > 2. Upper lip linear-oblong, twisted or recurved (upper lip is understandably > erect...as there is no mention about this) > 3. Upper lip much shorter than the lower (upper lip more or less equal to > the lower) > 4. Upper lip 9.5 mm long; 2 mm broad at base and 1.3 mm broad at top (upper > lip 15.8 mm by 3.2 mm, so it is much longer and broader here, in Hypoestes) > 5. Widely distributed & common (Rare, found in Konkan only?) > > I also learn that the anthers are *2-celled in Rhinacanthus*, and are > *1-celled > in Hypoestes*. May be this feature will help to fix the id unambiguously. > And the bracts said to be larger than calyx segments in Hypoestes, which is > not the case in the posted picture (clearly seen in pic # DSC_1483e). > The plant posted here by Raghu ji looks entirely different from either of > the pictures in the > link:https://groups.google.com/group/indiantreepix/browse_thread/thread/fb... > > Please correct me if I am wrong. > > Thanks & Regards > > Vijayasankar Raman > National Center for Natural Products Research > University of Mississippi > > On Thu, May 12, 2011 at 7:36 PM, shrikant ingalhalikar <[email protected] > > > > > wrote: > > Mr. Vijayasankar, this plant has been bothering me for ID for a long > > time. Rhinacanthus is a taller shrub, the upper lip is deltoid and > > acute. Here the upper lip is linear notched and recurved. I have IDd > > this as Hypoestis lanata. Could you pls validate. Regards, Shrikant. > > > On May 12, 9:53 pm, Vijayasankar <[email protected]> wrote: > > > Raghu ji, this is *Rhinacanthus nasutus *(Snake jasmine) of Acanthaceae.* > > > * > > > > Regards > > > > Vijayasankar Raman > > > National Center for Natural Products Research > > > University of Mississippi > > > > On Thu, May 12, 2011 at 11:06 AM, raghu ananth <[email protected]> > > wrote: > > > > Wayanad flora #15 | 12May2011AR01 > > > > > Showy white flowers of this shrub reminds - Striga densiflora, > > > > Scrophulariaceae > > > > > However, we can see subtle differences in > > > > - the flower lip -3 lobed, not so deep, > > > > - upper lip -lean > > > > > Date/Time-10 Jan 2011 06:19 PM > > > > Location- Place, Altitude, GPS- Near Karapuzha Dam, Waynaad, Kerala > > > > Habitat- Garden/ Urban/ Wild/ Type-, Wild, foot hills, beside dry water > > > > stream > > > > Plant Habit- Tree/ Shrub/ Climber/ Herb-Shrub, > > > > Height/Length-approx - 4 feet > > > > Leaves Type/ Shape/ Size- Shape - Approx. 10 cms, Leaves opposite > > > > Inflorescence Type/ Size- > > > > Flowers Size/ Colour/ Calyx/ Bracts - White, size-3-4cms, > > > > Fruits Type/ Shape/ Size Seeds- --NA-- > > > > Other Information like Fragrance, Pollinator, Uses etc.-- Hide quoted > > text - > > > > - Show quoted text -- Hide quoted text - > > - Show quoted text -
