ILLUSTRATIONS OF INDIAN BOTANY. 



163 



(Epigy 



Botanists under great obligation, for the pains he bestowed on their examination. In the course 

 of my examinations I found them useful both as generic and specific characters. Another pont 

 of structure of which the same accomphshed and careful observer has made much use is the 

 nectanal scales or glands embracing the base of the ovary, within the corolla : these also'l have 

 found veiy useful as often furnishing excellent characters, being, though minute and occasionally 

 somewhat difficult to investigate, very constant in each species. In the course of my recent 

 examination of the Indian species I found it necessary to add three new genera to the order 



One of these (A//er^o/22a, R.W. Icon. 1295) appertains to the '''"■'—■ ---'- » 



guished by having the seed winged in place of comose. Another t ^^.c/y««m, xv.vv. icon. y6y)V>) 

 . a Mergui plant, has the ovary adherent ! to the tube of the calyx, and will perhaps be found 

 referable to the Parsomew section ; but the fruit is still unknown. The plant is an interesting. 

 one, as forming the nearest connecting link between this order and Cinchonacece . At first"" 

 owing to my looking too much to the corolla, and not enough to the ovary, I suggested that 

 it might, perhaps, be allied to Ecdysanthera, which can scarcely be the case. Of the third 

 genus (Clegkornia, R.W. Icon. 1310,11), I feel less confident of its stabihty, as it so nearly 

 approaches Echites m generic characters, but still, I anticipate it will be retained, as all the 

 known genuine species of that genus are from America, and, so far as I am acquainted with 

 thein, appear very different. Ellertonia has been long known, but only from Rheede's plate 

 and in consequence much misunderstood. Willdenow first quoted it as a synonym for Echites 

 cosMa, Forst., an error pointed out by Brown. Roxburgh next quoted it as a synonym for 

 his Echzies caryophyllata, and as such was retained by Don for his Jganosma Ro.vburghii 

 JJe Landolle also retains it, but with the remark ("fide Rox. nam icon mediocr. cum seouentibus 

 pariter ponvenit aut non'') from which it would appear that, since the time of Rheede, it has 

 not again found its way into any herbarium, until I got specimens, several years ago, from the 

 Malabar coast. In addition to these genera, I have published figures of several new species 

 in my Icones, for characters of which I beg to refer to that work. 



EXPLANATION OF PLATE 154. 



1. Detached flower. 



(Wall 



2. Corolla removed and split open; anthers and 

 orange coloured crown inserted on the throat. 



3. Stamens, different views. 



4. Calyx and ovary, the fornaer opened showing the 

 calycine scales. 



5. 6. One cell of the ovary, cut vertically and trans- 

 versely. 



7. Mature seed, and 8. the same, the testa removed 

 showing the rolled up foliaceous cotyledons, seed exai- 

 buminous. 



EXPLANATION OF PLATE 154-b. 



Sliced ^^^^^ tindoria, mature follicles somewBat re- D.^Plumerieas. Huntera Roxburghiana (R. W.). 



duced. 



2- A seed with its attached coma. 



d. The same, testa removed. 4. Seed cut tmns- 

 versely. 



5. Follicles of If. Mollissima from Wall. PI. Asiat 

 rar. reduced in size. 



B. WiUughbeieae Chilocarpus Zeylanicus (R. W.f 



1. Flower before expansion. 



i A^}^^ ^P^' ''P^^' stamens and pistil in Situ. 

 t>. Anthers, back and frnnt ttIotoo 



4. Calyx and ovary, 

 celled. 6. Cut vertically. 



4 pS^^'^^' \^^^ *"^ ^^*^°^ views. 



5. Ovary cut transversely. 



1- 



C. Carisseaa. Canssa paudnervia (Alph. DC). 



agnified 



^. btamens back and front views. 



* Calyx and pistil. 4. Ovary cut transversely. 



-'■ M ^^"i^^%> ovules amphitropous. 



• Mature fruit cut transversely. 7. Cut vertically. 



• detached seed, back view. 



6 



7 



a ^^*^*^^^d seed, back view. 

 »- The same seen from within, 

 versely. n. Detached embryo. 



trans 



1, Corolla split open, stamens in situ. 

 3. Detached stamens* 



3. Calyx and pistil 4. Ovary cut vertically. 5. Cut 

 transversely. 



7. A dissected seed, embryo in situ. 8. Detached 

 embryo, 



E. Alstonieae. JBstoma scholaris {R. Br.)- 



L Corolla split open, stamens in situ. 2. Anthers. 



3. Calyx and pistil. 4. Ovary detached. 5. Cut ver- 

 tically. 6. transversely. 



7. A mature seed. 8. Cut transversely. 9. Testa 

 removed. 10. Embryo detached. 



P, Parsonieae. VdUaris dichotoma (Wall.). 



1. Flower, corolla split open, showing the cup-shaped 

 nectary and stamens in situ. 2. Stamens. 



3. Calyx and pistiL 4. Detached ovary. 5. Cut 



transversely. 



6. A seed. 7. Cut transversely, albumen sparing. 



8. Cut longitudinally, large embryo in situ. 



